Home / 89,481.81-134,168.85-39,536.40

Finding the Fourth Proportional to 89,481.81, 134,168.85 and 39,536.40

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Solution

The fourth proportional to 89,481.81, 134,168.85 and 39,536.40 is: 59,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,481.81 : 134,168.85 = 39,536.40 : x
  2. Step 2: Convert to fraction form
    89,481.81/134,168.85 = 39,536.40/x
  3. Step 3: Cross multiply
    89,481.81x = 134,168.85 × 39,536.40
  4. Step 4: Simplify right side
    89,481.81x = 5,304,553,321.14
  5. Step 5: Solve for x
    x = 5,304,553,321.14/89,481.81
  6. Step 6: Final answer
    x = 59,280.80

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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.