Home / 85,125.12-117,474.56-47,402.88

Finding the Fourth Proportional to 85,125.12, 117,474.56 and 47,402.88

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Solution

The fourth proportional to 85,125.12, 117,474.56 and 47,402.88 is: 65,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,125.12 : 117,474.56 = 47,402.88 : x
  2. Step 2: Convert to fraction form
    85,125.12/117,474.56 = 47,402.88/x
  3. Step 3: Cross multiply
    85,125.12x = 117,474.56 × 47,402.88
  4. Step 4: Simplify right side
    85,125.12x = 5,568,632,470.73
  5. Step 5: Solve for x
    x = 5,568,632,470.73/85,125.12
  6. Step 6: Final answer
    x = 65,417.03

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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.