Home / 83,317.18-124,988.72-27,144.21

Finding the Fourth Proportional to 83,317.18, 124,988.72 and 27,144.21

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Solution

The fourth proportional to 83,317.18, 124,988.72 and 27,144.21 is: 40,720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,317.18 : 124,988.72 = 27,144.21 : x
  2. Step 2: Convert to fraction form
    83,317.18/124,988.72 = 27,144.21/x
  3. Step 3: Cross multiply
    83,317.18x = 124,988.72 × 27,144.21
  4. Step 4: Simplify right side
    83,317.18x = 3,392,720,131.17
  5. Step 5: Solve for x
    x = 3,392,720,131.17/83,317.18
  6. Step 6: Final answer
    x = 40,720.54

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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.