Home / 88,415.36-132,375.04-66,331.52

Finding the Fourth Proportional to 88,415.36, 132,375.04 and 66,331.52

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Solution

The fourth proportional to 88,415.36, 132,375.04 and 66,331.52 is: 99,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,415.36 : 132,375.04 = 66,331.52 : x
  2. Step 2: Convert to fraction form
    88,415.36/132,375.04 = 66,331.52/x
  3. Step 3: Cross multiply
    88,415.36x = 132,375.04 × 66,331.52
  4. Step 4: Simplify right side
    88,415.36x = 8,780,637,613.26
  5. Step 5: Solve for x
    x = 8,780,637,613.26/88,415.36
  6. Step 6: Final answer
    x = 99,311.22

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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.