Home / 82,079.48-113,278.68-47,631.80

Finding the Fourth Proportional to 82,079.48, 113,278.68 and 47,631.80

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Solution

The fourth proportional to 82,079.48, 113,278.68 and 47,631.80 is: 65,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,079.48 : 113,278.68 = 47,631.80 : x
  2. Step 2: Convert to fraction form
    82,079.48/113,278.68 = 47,631.80/x
  3. Step 3: Cross multiply
    82,079.48x = 113,278.68 × 47,631.80
  4. Step 4: Simplify right side
    82,079.48x = 5,395,666,863.63
  5. Step 5: Solve for x
    x = 5,395,666,863.63/82,079.48
  6. Step 6: Final answer
    x = 65,737.10

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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.