Home / 54,691.61-81,982.73-47,164.68

Finding the Fourth Proportional to 54,691.61, 81,982.73 and 47,164.68

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Solution

The fourth proportional to 54,691.61, 81,982.73 and 47,164.68 is: 70,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,691.61 : 81,982.73 = 47,164.68 : x
  2. Step 2: Convert to fraction form
    54,691.61/81,982.73 = 47,164.68/x
  3. Step 3: Cross multiply
    54,691.61x = 81,982.73 × 47,164.68
  4. Step 4: Simplify right side
    54,691.61x = 3,866,689,343.89
  5. Step 5: Solve for x
    x = 3,866,689,343.89/54,691.61
  6. Step 6: Final answer
    x = 70,699.87

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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.