Home / 83,434.88-115,140.20-45,709.13

Finding the Fourth Proportional to 83,434.88, 115,140.20 and 45,709.13

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Solution

The fourth proportional to 83,434.88, 115,140.20 and 45,709.13 is: 63,078.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,434.88 : 115,140.20 = 45,709.13 : x
  2. Step 2: Convert to fraction form
    83,434.88/115,140.20 = 45,709.13/x
  3. Step 3: Cross multiply
    83,434.88x = 115,140.20 × 45,709.13
  4. Step 4: Simplify right side
    83,434.88x = 5,262,957,565.78
  5. Step 5: Solve for x
    x = 5,262,957,565.78/83,434.88
  6. Step 6: Final answer
    x = 63,078.63

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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.