Home / 83,531.80-115,276.98-47,726.20

Finding the Fourth Proportional to 83,531.80, 115,276.98 and 47,726.20

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Solution

The fourth proportional to 83,531.80, 115,276.98 and 47,726.20 is: 65,863.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,531.80 : 115,276.98 = 47,726.20 : x
  2. Step 2: Convert to fraction form
    83,531.80/115,276.98 = 47,726.20/x
  3. Step 3: Cross multiply
    83,531.80x = 115,276.98 × 47,726.20
  4. Step 4: Simplify right side
    83,531.80x = 5,501,732,202.88
  5. Step 5: Solve for x
    x = 5,501,732,202.88/83,531.80
  6. Step 6: Final answer
    x = 65,863.92

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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.