Home / 83,677.97-115,447.08-53,480.72

Finding the Fourth Proportional to 83,677.97, 115,447.08 and 53,480.72

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Solution

The fourth proportional to 83,677.97, 115,447.08 and 53,480.72 is: 73,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,677.97 : 115,447.08 = 53,480.72 : x
  2. Step 2: Convert to fraction form
    83,677.97/115,447.08 = 53,480.72/x
  3. Step 3: Cross multiply
    83,677.97x = 115,447.08 × 53,480.72
  4. Step 4: Simplify right side
    83,677.97x = 6,174,192,960.30
  5. Step 5: Solve for x
    x = 6,174,192,960.30/83,677.97
  6. Step 6: Final answer
    x = 73,785.17

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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.