Home / 87,776.10-121,131.02-47,489.85

Finding the Fourth Proportional to 87,776.10, 121,131.02 and 47,489.85

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Solution

The fourth proportional to 87,776.10, 121,131.02 and 47,489.85 is: 65,536.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,776.10 : 121,131.02 = 47,489.85 : x
  2. Step 2: Convert to fraction form
    87,776.10/121,131.02 = 47,489.85/x
  3. Step 3: Cross multiply
    87,776.10x = 121,131.02 × 47,489.85
  4. Step 4: Simplify right side
    87,776.10x = 5,752,494,088.87
  5. Step 5: Solve for x
    x = 5,752,494,088.87/87,776.10
  6. Step 6: Final answer
    x = 65,536.00

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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.