Home / 85,518.38-128,292.96-29,343.97

Finding the Fourth Proportional to 85,518.38, 128,292.96 and 29,343.97

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Solution

The fourth proportional to 85,518.38, 128,292.96 and 29,343.97 is: 44,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.38 : 128,292.96 = 29,343.97 : x
  2. Step 2: Convert to fraction form
    85,518.38/128,292.96 = 29,343.97/x
  3. Step 3: Cross multiply
    85,518.38x = 128,292.96 × 29,343.97
  4. Step 4: Simplify right side
    85,518.38x = 3,764,625,039.86
  5. Step 5: Solve for x
    x = 3,764,625,039.86/85,518.38
  6. Step 6: Final answer
    x = 44,021.24

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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.