Home / 77,962.50-107,588.55-43,508.70

Finding the Fourth Proportional to 77,962.50, 107,588.55 and 43,508.70

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Solution

The fourth proportional to 77,962.50, 107,588.55 and 43,508.70 is: 60,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,962.50 : 107,588.55 = 43,508.70 : x
  2. Step 2: Convert to fraction form
    77,962.50/107,588.55 = 43,508.70/x
  3. Step 3: Cross multiply
    77,962.50x = 107,588.55 × 43,508.70
  4. Step 4: Simplify right side
    77,962.50x = 4,681,037,945.39
  5. Step 5: Solve for x
    x = 4,681,037,945.39/77,962.50
  6. Step 6: Final answer
    x = 60,042.17

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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.