Home / 87,314.64-120,508.76-51,513.52

Finding the Fourth Proportional to 87,314.64, 120,508.76 and 51,513.52

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Solution

The fourth proportional to 87,314.64, 120,508.76 and 51,513.52 is: 71,097.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,314.64 : 120,508.76 = 51,513.52 : x
  2. Step 2: Convert to fraction form
    87,314.64/120,508.76 = 51,513.52/x
  3. Step 3: Cross multiply
    87,314.64x = 120,508.76 × 51,513.52
  4. Step 4: Simplify right side
    87,314.64x = 6,207,830,418.44
  5. Step 5: Solve for x
    x = 6,207,830,418.44/87,314.64
  6. Step 6: Final answer
    x = 71,097.25

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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.