Home / 81,547.72-112,534.50-47,575.96

Finding the Fourth Proportional to 81,547.72, 112,534.50 and 47,575.96

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Solution

The fourth proportional to 81,547.72, 112,534.50 and 47,575.96 is: 65,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,547.72 : 112,534.50 = 47,575.96 : x
  2. Step 2: Convert to fraction form
    81,547.72/112,534.50 = 47,575.96/x
  3. Step 3: Cross multiply
    81,547.72x = 112,534.50 × 47,575.96
  4. Step 4: Simplify right side
    81,547.72x = 5,353,936,870.62
  5. Step 5: Solve for x
    x = 5,353,936,870.62/81,547.72
  6. Step 6: Final answer
    x = 65,654.04

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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.