Home / 99,015.38-148,561.95-43,572.50

Finding the Fourth Proportional to 99,015.38, 148,561.95 and 43,572.50

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Solution

The fourth proportional to 99,015.38, 148,561.95 and 43,572.50 is: 65,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.38 : 148,561.95 = 43,572.50 : x
  2. Step 2: Convert to fraction form
    99,015.38/148,561.95 = 43,572.50/x
  3. Step 3: Cross multiply
    99,015.38x = 148,561.95 × 43,572.50
  4. Step 4: Simplify right side
    99,015.38x = 6,473,215,566.38
  5. Step 5: Solve for x
    x = 6,473,215,566.38/99,015.38
  6. Step 6: Final answer
    x = 65,375.86

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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.