Home / 82,627.02-123,748.29-80,354.16

Finding the Fourth Proportional to 82,627.02, 123,748.29 and 80,354.16

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Solution

The fourth proportional to 82,627.02, 123,748.29 and 80,354.16 is: 120,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,627.02 : 123,748.29 = 80,354.16 : x
  2. Step 2: Convert to fraction form
    82,627.02/123,748.29 = 80,354.16/x
  3. Step 3: Cross multiply
    82,627.02x = 123,748.29 × 80,354.16
  4. Step 4: Simplify right side
    82,627.02x = 9,943,689,731.66
  5. Step 5: Solve for x
    x = 9,943,689,731.66/82,627.02
  6. Step 6: Final answer
    x = 120,344.29

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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.