Home / 83,031.32-124,537.78-29,721.16

Finding the Fourth Proportional to 83,031.32, 124,537.78 and 29,721.16

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Solution

The fourth proportional to 83,031.32, 124,537.78 and 29,721.16 is: 44,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,031.32 : 124,537.78 = 29,721.16 : x
  2. Step 2: Convert to fraction form
    83,031.32/124,537.78 = 29,721.16/x
  3. Step 3: Cross multiply
    83,031.32x = 124,537.78 × 29,721.16
  4. Step 4: Simplify right side
    83,031.32x = 3,701,407,285.42
  5. Step 5: Solve for x
    x = 3,701,407,285.42/83,031.32
  6. Step 6: Final answer
    x = 44,578.45

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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.