Home / 86,293.62-129,414.78-38,881.35

Finding the Fourth Proportional to 86,293.62, 129,414.78 and 38,881.35

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Solution

The fourth proportional to 86,293.62, 129,414.78 and 38,881.35 is: 58,310.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,293.62 : 129,414.78 = 38,881.35 : x
  2. Step 2: Convert to fraction form
    86,293.62/129,414.78 = 38,881.35/x
  3. Step 3: Cross multiply
    86,293.62x = 129,414.78 × 38,881.35
  4. Step 4: Simplify right side
    86,293.62x = 5,031,821,356.35
  5. Step 5: Solve for x
    x = 5,031,821,356.35/86,293.62
  6. Step 6: Final answer
    x = 58,310.47

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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.