Home / 91,239.22-136,873.50-38,649.16

Finding the Fourth Proportional to 91,239.22, 136,873.50 and 38,649.16

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Solution

The fourth proportional to 91,239.22, 136,873.50 and 38,649.16 is: 57,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,239.22 : 136,873.50 = 38,649.16 : x
  2. Step 2: Convert to fraction form
    91,239.22/136,873.50 = 38,649.16/x
  3. Step 3: Cross multiply
    91,239.22x = 136,873.50 × 38,649.16
  4. Step 4: Simplify right side
    91,239.22x = 5,290,045,801.26
  5. Step 5: Solve for x
    x = 5,290,045,801.26/91,239.22
  6. Step 6: Final answer
    x = 57,979.95

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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.