Home / 77,772.27-107,227.53-50,872.17

Finding the Fourth Proportional to 77,772.27, 107,227.53 and 50,872.17

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Solution

The fourth proportional to 77,772.27, 107,227.53 and 50,872.17 is: 70,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,772.27 : 107,227.53 = 50,872.17 : x
  2. Step 2: Convert to fraction form
    77,772.27/107,227.53 = 50,872.17/x
  3. Step 3: Cross multiply
    77,772.27x = 107,227.53 × 50,872.17
  4. Step 4: Simplify right side
    77,772.27x = 5,454,897,134.84
  5. Step 5: Solve for x
    x = 5,454,897,134.84/77,772.27
  6. Step 6: Final answer
    x = 70,139.36

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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.