Home / 91,127.28-125,755.74-53,401.50

Finding the Fourth Proportional to 91,127.28, 125,755.74 and 53,401.50

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Solution

The fourth proportional to 91,127.28, 125,755.74 and 53,401.50 is: 73,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,127.28 : 125,755.74 = 53,401.50 : x
  2. Step 2: Convert to fraction form
    91,127.28/125,755.74 = 53,401.50/x
  3. Step 3: Cross multiply
    91,127.28x = 125,755.74 × 53,401.50
  4. Step 4: Simplify right side
    91,127.28x = 6,715,545,149.61
  5. Step 5: Solve for x
    x = 6,715,545,149.61/91,127.28
  6. Step 6: Final answer
    x = 73,694.12

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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.