Home / 83,136.80-124,632.30-49,870.10

Finding the Fourth Proportional to 83,136.80, 124,632.30 and 49,870.10

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Solution

The fourth proportional to 83,136.80, 124,632.30 and 49,870.10 is: 74,761.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,136.80 : 124,632.30 = 49,870.10 : x
  2. Step 2: Convert to fraction form
    83,136.80/124,632.30 = 49,870.10/x
  3. Step 3: Cross multiply
    83,136.80x = 124,632.30 × 49,870.10
  4. Step 4: Simplify right side
    83,136.80x = 6,215,425,264.23
  5. Step 5: Solve for x
    x = 6,215,425,264.23/83,136.80
  6. Step 6: Final answer
    x = 74,761.42

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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.