Home / 95,047.20-142,455.60-42,400.80

Finding the Fourth Proportional to 95,047.20, 142,455.60 and 42,400.80

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Solution

The fourth proportional to 95,047.20, 142,455.60 and 42,400.80 is: 63,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,047.20 : 142,455.60 = 42,400.80 : x
  2. Step 2: Convert to fraction form
    95,047.20/142,455.60 = 42,400.80/x
  3. Step 3: Cross multiply
    95,047.20x = 142,455.60 × 42,400.80
  4. Step 4: Simplify right side
    95,047.20x = 6,040,231,404.48
  5. Step 5: Solve for x
    x = 6,040,231,404.48/95,047.20
  6. Step 6: Final answer
    x = 63,549.81

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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.