Home / 57,003.25-78,663.10-31,160.65

Finding the Fourth Proportional to 57,003.25, 78,663.10 and 31,160.65

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Solution

The fourth proportional to 57,003.25, 78,663.10 and 31,160.65 is: 43,000.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.25 : 78,663.10 = 31,160.65 : x
  2. Step 2: Convert to fraction form
    57,003.25/78,663.10 = 31,160.65/x
  3. Step 3: Cross multiply
    57,003.25x = 78,663.10 × 31,160.65
  4. Step 4: Simplify right side
    57,003.25x = 2,451,193,327.02
  5. Step 5: Solve for x
    x = 2,451,193,327.02/57,003.25
  6. Step 6: Final answer
    x = 43,000.94

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1.5x scale

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.