Home / 87,732.79-121,070.90-47,446.59

Finding the Fourth Proportional to 87,732.79, 121,070.90 and 47,446.59

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Solution

The fourth proportional to 87,732.79, 121,070.90 and 47,446.59 is: 65,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,732.79 : 121,070.90 = 47,446.59 : x
  2. Step 2: Convert to fraction form
    87,732.79/121,070.90 = 47,446.59/x
  3. Step 3: Cross multiply
    87,732.79x = 121,070.90 × 47,446.59
  4. Step 4: Simplify right side
    87,732.79x = 5,744,401,116.00
  5. Step 5: Solve for x
    x = 5,744,401,116.00/87,732.79
  6. Step 6: Final answer
    x = 65,476.11

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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.