Home / 89,899.38-134,809.84-47,769.30

Finding the Fourth Proportional to 89,899.38, 134,809.84 and 47,769.30

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Solution

The fourth proportional to 89,899.38, 134,809.84 and 47,769.30 is: 71,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,899.38 : 134,809.84 = 47,769.30 : x
  2. Step 2: Convert to fraction form
    89,899.38/134,809.84 = 47,769.30/x
  3. Step 3: Cross multiply
    89,899.38x = 134,809.84 × 47,769.30
  4. Step 4: Simplify right side
    89,899.38x = 6,439,771,689.91
  5. Step 5: Solve for x
    x = 6,439,771,689.91/89,899.38
  6. Step 6: Final answer
    x = 71,633.10

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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.