Home / 90,949.61-136,442.91-38,359.28

Finding the Fourth Proportional to 90,949.61, 136,442.91 and 38,359.28

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Solution

The fourth proportional to 90,949.61, 136,442.91 and 38,359.28 is: 57,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,949.61 : 136,442.91 = 38,359.28 : x
  2. Step 2: Convert to fraction form
    90,949.61/136,442.91 = 38,359.28/x
  3. Step 3: Cross multiply
    90,949.61x = 136,442.91 × 38,359.28
  4. Step 4: Simplify right side
    90,949.61x = 5,233,851,788.70
  5. Step 5: Solve for x
    x = 5,233,851,788.70/90,949.61
  6. Step 6: Final answer
    x = 57,546.72

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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.