Home / 83,012.16-124,515.12-45,589.68

Finding the Fourth Proportional to 83,012.16, 124,515.12 and 45,589.68

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Solution

The fourth proportional to 83,012.16, 124,515.12 and 45,589.68 is: 68,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,012.16 : 124,515.12 = 45,589.68 : x
  2. Step 2: Convert to fraction form
    83,012.16/124,515.12 = 45,589.68/x
  3. Step 3: Cross multiply
    83,012.16x = 124,515.12 × 45,589.68
  4. Step 4: Simplify right side
    83,012.16x = 5,676,604,475.96
  5. Step 5: Solve for x
    x = 5,676,604,475.96/83,012.16
  6. Step 6: Final answer
    x = 68,382.81

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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.