Home / 87,612.79-120,898.83-53,607.17

Finding the Fourth Proportional to 87,612.79, 120,898.83 and 53,607.17

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Solution

The fourth proportional to 87,612.79, 120,898.83 and 53,607.17 is: 73,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,612.79 : 120,898.83 = 53,607.17 : x
  2. Step 2: Convert to fraction form
    87,612.79/120,898.83 = 53,607.17/x
  3. Step 3: Cross multiply
    87,612.79x = 120,898.83 × 53,607.17
  4. Step 4: Simplify right side
    87,612.79x = 6,481,044,132.61
  5. Step 5: Solve for x
    x = 6,481,044,132.61/87,612.79
  6. Step 6: Final answer
    x = 73,973.72

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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.