Home / 89,713.75-134,526.85-51,240.78

Finding the Fourth Proportional to 89,713.75, 134,526.85 and 51,240.78

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Solution

The fourth proportional to 89,713.75, 134,526.85 and 51,240.78 is: 76,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,713.75 : 134,526.85 = 51,240.78 : x
  2. Step 2: Convert to fraction form
    89,713.75/134,526.85 = 51,240.78/x
  3. Step 3: Cross multiply
    89,713.75x = 134,526.85 × 51,240.78
  4. Step 4: Simplify right side
    89,713.75x = 6,893,260,724.94
  5. Step 5: Solve for x
    x = 6,893,260,724.94/89,713.75
  6. Step 6: Final answer
    x = 76,836.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.