Home / 81,534.72-112,516.56-47,562.96

Finding the Fourth Proportional to 81,534.72, 112,516.56 and 47,562.96

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Solution

The fourth proportional to 81,534.72, 112,516.56 and 47,562.96 is: 65,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,534.72 : 112,516.56 = 47,562.96 : x
  2. Step 2: Convert to fraction form
    81,534.72/112,516.56 = 47,562.96/x
  3. Step 3: Cross multiply
    81,534.72x = 112,516.56 × 47,562.96
  4. Step 4: Simplify right side
    81,534.72x = 5,351,620,642.62
  5. Step 5: Solve for x
    x = 5,351,620,642.62/81,534.72
  6. Step 6: Final answer
    x = 65,636.10

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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.