Home / 83,122.12-124,683.18-20,792.62

Finding the Fourth Proportional to 83,122.12, 124,683.18 and 20,792.62

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Solution

The fourth proportional to 83,122.12, 124,683.18 and 20,792.62 is: 31,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,122.12 : 124,683.18 = 20,792.62 : x
  2. Step 2: Convert to fraction form
    83,122.12/124,683.18 = 20,792.62/x
  3. Step 3: Cross multiply
    83,122.12x = 124,683.18 × 20,792.62
  4. Step 4: Simplify right side
    83,122.12x = 2,592,489,982.13
  5. Step 5: Solve for x
    x = 2,592,489,982.13/83,122.12
  6. Step 6: Final answer
    x = 31,188.93

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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.