Home / 99,609.76-149,427.60-36,420.04

Finding the Fourth Proportional to 99,609.76, 149,427.60 and 36,420.04

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Solution

The fourth proportional to 99,609.76, 149,427.60 and 36,420.04 is: 54,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,609.76 : 149,427.60 = 36,420.04 : x
  2. Step 2: Convert to fraction form
    99,609.76/149,427.60 = 36,420.04/x
  3. Step 3: Cross multiply
    99,609.76x = 149,427.60 × 36,420.04
  4. Step 4: Simplify right side
    99,609.76x = 5,442,159,169.10
  5. Step 5: Solve for x
    x = 5,442,159,169.10/99,609.76
  6. Step 6: Final answer
    x = 54,634.80

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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.