Home / 67,523.40-101,285.10-66,486.60

Finding the Fourth Proportional to 67,523.40, 101,285.10 and 66,486.60

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Solution

The fourth proportional to 67,523.40, 101,285.10 and 66,486.60 is: 99,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,523.40 : 101,285.10 = 66,486.60 : x
  2. Step 2: Convert to fraction form
    67,523.40/101,285.10 = 66,486.60/x
  3. Step 3: Cross multiply
    67,523.40x = 101,285.10 × 66,486.60
  4. Step 4: Simplify right side
    67,523.40x = 6,734,101,929.66
  5. Step 5: Solve for x
    x = 6,734,101,929.66/67,523.40
  6. Step 6: Final answer
    x = 99,729.90

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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.