Home / 82,916.40-124,374.60-27,505.20

Finding the Fourth Proportional to 82,916.40, 124,374.60 and 27,505.20

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Solution

The fourth proportional to 82,916.40, 124,374.60 and 27,505.20 is: 41,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,916.40 : 124,374.60 = 27,505.20 : x
  2. Step 2: Convert to fraction form
    82,916.40/124,374.60 = 27,505.20/x
  3. Step 3: Cross multiply
    82,916.40x = 124,374.60 × 27,505.20
  4. Step 4: Simplify right side
    82,916.40x = 3,420,948,247.92
  5. Step 5: Solve for x
    x = 3,420,948,247.92/82,916.40
  6. Step 6: Final answer
    x = 41,257.80

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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.