Home / 54,308.20-81,462.30-47,741.80

Finding the Fourth Proportional to 54,308.20, 81,462.30 and 47,741.80

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Solution

The fourth proportional to 54,308.20, 81,462.30 and 47,741.80 is: 71,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,308.20 : 81,462.30 = 47,741.80 : x
  2. Step 2: Convert to fraction form
    54,308.20/81,462.30 = 47,741.80/x
  3. Step 3: Cross multiply
    54,308.20x = 81,462.30 × 47,741.80
  4. Step 4: Simplify right side
    54,308.20x = 3,889,156,834.14
  5. Step 5: Solve for x
    x = 3,889,156,834.14/54,308.20
  6. Step 6: Final answer
    x = 71,612.70

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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.