Home / 77,600.96-107,130.24-52,240.70

Finding the Fourth Proportional to 77,600.96, 107,130.24 and 52,240.70

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Solution

The fourth proportional to 77,600.96, 107,130.24 and 52,240.70 is: 72,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,600.96 : 107,130.24 = 52,240.70 : x
  2. Step 2: Convert to fraction form
    77,600.96/107,130.24 = 52,240.70/x
  3. Step 3: Cross multiply
    77,600.96x = 107,130.24 × 52,240.70
  4. Step 4: Simplify right side
    77,600.96x = 5,596,558,728.77
  5. Step 5: Solve for x
    x = 5,596,558,728.77/77,600.96
  6. Step 6: Final answer
    x = 72,119.71

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.