Home / 68,321.12-94,283.27-38,108.40

Finding the Fourth Proportional to 68,321.12, 94,283.27 and 38,108.40

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Solution

The fourth proportional to 68,321.12, 94,283.27 and 38,108.40 is: 52,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,321.12 : 94,283.27 = 38,108.40 : x
  2. Step 2: Convert to fraction form
    68,321.12/94,283.27 = 38,108.40/x
  3. Step 3: Cross multiply
    68,321.12x = 94,283.27 × 38,108.40
  4. Step 4: Simplify right side
    68,321.12x = 3,592,984,145.52
  5. Step 5: Solve for x
    x = 3,592,984,145.52/68,321.12
  6. Step 6: Final answer
    x = 52,589.66

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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.