Home / 85,169.24-127,754.33-21,985.04

Finding the Fourth Proportional to 85,169.24, 127,754.33 and 21,985.04

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Solution

The fourth proportional to 85,169.24, 127,754.33 and 21,985.04 is: 32,977.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,169.24 : 127,754.33 = 21,985.04 : x
  2. Step 2: Convert to fraction form
    85,169.24/127,754.33 = 21,985.04/x
  3. Step 3: Cross multiply
    85,169.24x = 127,754.33 × 21,985.04
  4. Step 4: Simplify right side
    85,169.24x = 2,808,684,264.68
  5. Step 5: Solve for x
    x = 2,808,684,264.68/85,169.24
  6. Step 6: Final answer
    x = 32,977.69

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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.