Home / 85,080.12-127,620.18-22,749

Finding the Fourth Proportional to 85,080.12, 127,620.18 and 22,749

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Solution

The fourth proportional to 85,080.12, 127,620.18 and 22,749 is: 34,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,080.12 : 127,620.18 = 22,749 : x
  2. Step 2: Convert to fraction form
    85,080.12/127,620.18 = 22,749/x
  3. Step 3: Cross multiply
    85,080.12x = 127,620.18 × 22,749
  4. Step 4: Simplify right side
    85,080.12x = 2,903,231,474.82
  5. Step 5: Solve for x
    x = 2,903,231,474.82/85,080.12
  6. Step 6: Final answer
    x = 34,123.50

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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.