Home / 42,027.16-57,997.14-31,320.04

Finding the Fourth Proportional to 42,027.16, 57,997.14 and 31,320.04

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Solution

The fourth proportional to 42,027.16, 57,997.14 and 31,320.04 is: 43,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,027.16 : 57,997.14 = 31,320.04 : x
  2. Step 2: Convert to fraction form
    42,027.16/57,997.14 = 31,320.04/x
  3. Step 3: Cross multiply
    42,027.16x = 57,997.14 × 31,320.04
  4. Step 4: Simplify right side
    42,027.16x = 1,816,472,744.69
  5. Step 5: Solve for x
    x = 1,816,472,744.69/42,027.16
  6. Step 6: Final answer
    x = 43,221.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.