Home / 90,676.40-125,125.48-50,387.61

Finding the Fourth Proportional to 90,676.40, 125,125.48 and 50,387.61

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Solution

The fourth proportional to 90,676.40, 125,125.48 and 50,387.61 is: 69,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,676.40 : 125,125.48 = 50,387.61 : x
  2. Step 2: Convert to fraction form
    90,676.40/125,125.48 = 50,387.61/x
  3. Step 3: Cross multiply
    90,676.40x = 125,125.48 × 50,387.61
  4. Step 4: Simplify right side
    90,676.40x = 6,304,773,887.30
  5. Step 5: Solve for x
    x = 6,304,773,887.30/90,676.40
  6. Step 6: Final answer
    x = 69,530.48

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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.