Home / 85,253.12-127,889.25-69,591.47

Finding the Fourth Proportional to 85,253.12, 127,889.25 and 69,591.47

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Solution

The fourth proportional to 85,253.12, 127,889.25 and 69,591.47 is: 104,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,253.12 : 127,889.25 = 69,591.47 : x
  2. Step 2: Convert to fraction form
    85,253.12/127,889.25 = 69,591.47/x
  3. Step 3: Cross multiply
    85,253.12x = 127,889.25 × 69,591.47
  4. Step 4: Simplify right side
    85,253.12x = 8,900,000,265.25
  5. Step 5: Solve for x
    x = 8,900,000,265.25/85,253.12
  6. Step 6: Final answer
    x = 104,395.02

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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.