Home / 55,211.52-76,189.52-31,337.76

Finding the Fourth Proportional to 55,211.52, 76,189.52 and 31,337.76

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Solution

The fourth proportional to 55,211.52, 76,189.52 and 31,337.76 is: 43,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.52 : 76,189.52 = 31,337.76 : x
  2. Step 2: Convert to fraction form
    55,211.52/76,189.52 = 31,337.76/x
  3. Step 3: Cross multiply
    55,211.52x = 76,189.52 × 31,337.76
  4. Step 4: Simplify right side
    55,211.52x = 2,387,608,892.28
  5. Step 5: Solve for x
    x = 2,387,608,892.28/55,211.52
  6. Step 6: Final answer
    x = 43,244.76

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Double scale
Find fourth proportional to 55,212.52, 76,190.90 and 31,338.76
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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.