Home / 83,031.04-124,545.48-20,702.08

Finding the Fourth Proportional to 83,031.04, 124,545.48 and 20,702.08

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Solution

The fourth proportional to 83,031.04, 124,545.48 and 20,702.08 is: 31,052.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,031.04 : 124,545.48 = 20,702.08 : x
  2. Step 2: Convert to fraction form
    83,031.04/124,545.48 = 20,702.08/x
  3. Step 3: Cross multiply
    83,031.04x = 124,545.48 × 20,702.08
  4. Step 4: Simplify right side
    83,031.04x = 2,578,350,490.60
  5. Step 5: Solve for x
    x = 2,578,350,490.60/83,031.04
  6. Step 6: Final answer
    x = 31,052.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.