Home / 85,156.03-127,731.61-25,983.10

Finding the Fourth Proportional to 85,156.03, 127,731.61 and 25,983.10

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Solution

The fourth proportional to 85,156.03, 127,731.61 and 25,983.10 is: 38,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,156.03 : 127,731.61 = 25,983.10 : x
  2. Step 2: Convert to fraction form
    85,156.03/127,731.61 = 25,983.10/x
  3. Step 3: Cross multiply
    85,156.03x = 127,731.61 × 25,983.10
  4. Step 4: Simplify right side
    85,156.03x = 3,318,863,387.93
  5. Step 5: Solve for x
    x = 3,318,863,387.93/85,156.03
  6. Step 6: Final answer
    x = 38,973.91

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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.