Home / 87,691.03-121,012.88-47,404.44

Finding the Fourth Proportional to 87,691.03, 121,012.88 and 47,404.44

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Solution

The fourth proportional to 87,691.03, 121,012.88 and 47,404.44 is: 65,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,691.03 : 121,012.88 = 47,404.44 : x
  2. Step 2: Convert to fraction form
    87,691.03/121,012.88 = 47,404.44/x
  3. Step 3: Cross multiply
    87,691.03x = 121,012.88 × 47,404.44
  4. Step 4: Simplify right side
    87,691.03x = 5,736,547,572.17
  5. Step 5: Solve for x
    x = 5,736,547,572.17/87,691.03
  6. Step 6: Final answer
    x = 65,417.73

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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.