Home / 77,614.39-107,088.87-47,388.70

Finding the Fourth Proportional to 77,614.39, 107,088.87 and 47,388.70

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Solution

The fourth proportional to 77,614.39, 107,088.87 and 47,388.70 is: 65,384.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,614.39 : 107,088.87 = 47,388.70 : x
  2. Step 2: Convert to fraction form
    77,614.39/107,088.87 = 47,388.70/x
  3. Step 3: Cross multiply
    77,614.39x = 107,088.87 × 47,388.70
  4. Step 4: Simplify right side
    77,614.39x = 5,074,802,333.77
  5. Step 5: Solve for x
    x = 5,074,802,333.77/77,614.39
  6. Step 6: Final answer
    x = 65,384.81

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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.