Home / 85,149.92-127,724.51-25,985.39

Finding the Fourth Proportional to 85,149.92, 127,724.51 and 25,985.39

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Solution

The fourth proportional to 85,149.92, 127,724.51 and 25,985.39 is: 38,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,149.92 : 127,724.51 = 25,985.39 : x
  2. Step 2: Convert to fraction form
    85,149.92/127,724.51 = 25,985.39/x
  3. Step 3: Cross multiply
    85,149.92x = 127,724.51 × 25,985.39
  4. Step 4: Simplify right side
    85,149.92x = 3,318,970,436.36
  5. Step 5: Solve for x
    x = 3,318,970,436.36/85,149.92
  6. Step 6: Final answer
    x = 38,977.97

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1.5x scale

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.