Home / 87,903.43-121,306.76-47,617.07

Finding the Fourth Proportional to 87,903.43, 121,306.76 and 47,617.07

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Solution

The fourth proportional to 87,903.43, 121,306.76 and 47,617.07 is: 65,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,903.43 : 121,306.76 = 47,617.07 : x
  2. Step 2: Convert to fraction form
    87,903.43/121,306.76 = 47,617.07/x
  3. Step 3: Cross multiply
    87,903.43x = 121,306.76 × 47,617.07
  4. Step 4: Simplify right side
    87,903.43x = 5,776,272,084.18
  5. Step 5: Solve for x
    x = 5,776,272,084.18/87,903.43
  6. Step 6: Final answer
    x = 65,711.57

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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.