Home / 91,031.01-136,531.85-38,433.66

Finding the Fourth Proportional to 91,031.01, 136,531.85 and 38,433.66

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Solution

The fourth proportional to 91,031.01, 136,531.85 and 38,433.66 is: 57,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,031.01 : 136,531.85 = 38,433.66 : x
  2. Step 2: Convert to fraction form
    91,031.01/136,531.85 = 38,433.66/x
  3. Step 3: Cross multiply
    91,031.01x = 136,531.85 × 38,433.66
  4. Step 4: Simplify right side
    91,031.01x = 5,247,418,509.90
  5. Step 5: Solve for x
    x = 5,247,418,509.90/91,031.01
  6. Step 6: Final answer
    x = 57,644.30

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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.