Home / 68,642.15-94,781.27-55,170.23

Finding the Fourth Proportional to 68,642.15, 94,781.27 and 55,170.23

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Solution

The fourth proportional to 68,642.15, 94,781.27 and 55,170.23 is: 76,179.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,642.15 : 94,781.27 = 55,170.23 : x
  2. Step 2: Convert to fraction form
    68,642.15/94,781.27 = 55,170.23/x
  3. Step 3: Cross multiply
    68,642.15x = 94,781.27 × 55,170.23
  4. Step 4: Simplify right side
    68,642.15x = 5,229,104,129.61
  5. Step 5: Solve for x
    x = 5,229,104,129.61/68,642.15
  6. Step 6: Final answer
    x = 76,179.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.