Home / 82,500.60-123,750.90-57,617.40

Finding the Fourth Proportional to 82,500.60, 123,750.90 and 57,617.40

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Solution

The fourth proportional to 82,500.60, 123,750.90 and 57,617.40 is: 86,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,500.60 : 123,750.90 = 57,617.40 : x
  2. Step 2: Convert to fraction form
    82,500.60/123,750.90 = 57,617.40/x
  3. Step 3: Cross multiply
    82,500.60x = 123,750.90 × 57,617.40
  4. Step 4: Simplify right side
    82,500.60x = 7,130,205,105.66
  5. Step 5: Solve for x
    x = 7,130,205,105.66/82,500.60
  6. Step 6: Final answer
    x = 86,426.10

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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.