Home / 82,341.56-123,529.76-31,741.89

Finding the Fourth Proportional to 82,341.56, 123,529.76 and 31,741.89

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Solution

The fourth proportional to 82,341.56, 123,529.76 and 31,741.89 is: 47,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,341.56 : 123,529.76 = 31,741.89 : x
  2. Step 2: Convert to fraction form
    82,341.56/123,529.76 = 31,741.89/x
  3. Step 3: Cross multiply
    82,341.56x = 123,529.76 × 31,741.89
  4. Step 4: Simplify right side
    82,341.56x = 3,921,068,245.59
  5. Step 5: Solve for x
    x = 3,921,068,245.59/82,341.56
  6. Step 6: Final answer
    x = 47,619.55

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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.