Home / 82,916.62-124,374.92-20,587.12

Finding the Fourth Proportional to 82,916.62, 124,374.92 and 20,587.12

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Solution

The fourth proportional to 82,916.62, 124,374.92 and 20,587.12 is: 30,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,916.62 : 124,374.92 = 20,587.12 : x
  2. Step 2: Convert to fraction form
    82,916.62/124,374.92 = 20,587.12/x
  3. Step 3: Cross multiply
    82,916.62x = 124,374.92 × 20,587.12
  4. Step 4: Simplify right side
    82,916.62x = 2,560,521,403.03
  5. Step 5: Solve for x
    x = 2,560,521,403.03/82,916.62
  6. Step 6: Final answer
    x = 30,880.68

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1.5x scale

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.