Home / 77,387.59-106,755.56-50,545.81

Finding the Fourth Proportional to 77,387.59, 106,755.56 and 50,545.81

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Solution

The fourth proportional to 77,387.59, 106,755.56 and 50,545.81 is: 69,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,387.59 : 106,755.56 = 50,545.81 : x
  2. Step 2: Convert to fraction form
    77,387.59/106,755.56 = 50,545.81/x
  3. Step 3: Cross multiply
    77,387.59x = 106,755.56 × 50,545.81
  4. Step 4: Simplify right side
    77,387.59x = 5,396,045,718.43
  5. Step 5: Solve for x
    x = 5,396,045,718.43/77,387.59
  6. Step 6: Final answer
    x = 69,727.54

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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.