Home / 85,144.92-127,724.04-25,981.10

Finding the Fourth Proportional to 85,144.92, 127,724.04 and 25,981.10

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Solution

The fourth proportional to 85,144.92, 127,724.04 and 25,981.10 is: 38,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.92 : 127,724.04 = 25,981.10 : x
  2. Step 2: Convert to fraction form
    85,144.92/127,724.04 = 25,981.10/x
  3. Step 3: Cross multiply
    85,144.92x = 127,724.04 × 25,981.10
  4. Step 4: Simplify right side
    85,144.92x = 3,318,411,055.64
  5. Step 5: Solve for x
    x = 3,318,411,055.64/85,144.92
  6. Step 6: Final answer
    x = 38,973.68

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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.