Home / 85,311.12-127,974.36-22,980.24

Finding the Fourth Proportional to 85,311.12, 127,974.36 and 22,980.24

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Solution

The fourth proportional to 85,311.12, 127,974.36 and 22,980.24 is: 34,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.12 : 127,974.36 = 22,980.24 : x
  2. Step 2: Convert to fraction form
    85,311.12/127,974.36 = 22,980.24/x
  3. Step 3: Cross multiply
    85,311.12x = 127,974.36 × 22,980.24
  4. Step 4: Simplify right side
    85,311.12x = 2,940,881,506.65
  5. Step 5: Solve for x
    x = 2,940,881,506.65/85,311.12
  6. Step 6: Final answer
    x = 34,472.43

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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.