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Finding the Fourth Proportional to 89,866.76, 134,800.68 and 39,935.12

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Solution

The fourth proportional to 89,866.76, 134,800.68 and 39,935.12 is: 59,902.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,866.76 : 134,800.68 = 39,935.12 : x
  2. Step 2: Convert to fraction form
    89,866.76/134,800.68 = 39,935.12/x
  3. Step 3: Cross multiply
    89,866.76x = 134,800.68 × 39,935.12
  4. Step 4: Simplify right side
    89,866.76x = 5,383,281,331.88
  5. Step 5: Solve for x
    x = 5,383,281,331.88/89,866.76
  6. Step 6: Final answer
    x = 59,902.92

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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.