Home / 85,026.60-127,542-40,658.04

Finding the Fourth Proportional to 85,026.60, 127,542 and 40,658.04

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Solution

The fourth proportional to 85,026.60, 127,542 and 40,658.04 is: 60,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,026.60 : 127,542 = 40,658.04 : x
  2. Step 2: Convert to fraction form
    85,026.60/127,542 = 40,658.04/x
  3. Step 3: Cross multiply
    85,026.60x = 127,542 × 40,658.04
  4. Step 4: Simplify right side
    85,026.60x = 5,185,607,737.68
  5. Step 5: Solve for x
    x = 5,185,607,737.68/85,026.60
  6. Step 6: Final answer
    x = 60,988.06

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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.