Home / 67,479.28-101,187.60-39,407.66

Finding the Fourth Proportional to 67,479.28, 101,187.60 and 39,407.66

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Solution

The fourth proportional to 67,479.28, 101,187.60 and 39,407.66 is: 59,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,479.28 : 101,187.60 = 39,407.66 : x
  2. Step 2: Convert to fraction form
    67,479.28/101,187.60 = 39,407.66/x
  3. Step 3: Cross multiply
    67,479.28x = 101,187.60 × 39,407.66
  4. Step 4: Simplify right side
    67,479.28x = 3,987,566,537.02
  5. Step 5: Solve for x
    x = 3,987,566,537.02/67,479.28
  6. Step 6: Final answer
    x = 59,093.20

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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.