Home / 85,282.72-127,909.68-22,939.36

Finding the Fourth Proportional to 85,282.72, 127,909.68 and 22,939.36

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Solution

The fourth proportional to 85,282.72, 127,909.68 and 22,939.36 is: 34,405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,282.72 : 127,909.68 = 22,939.36 : x
  2. Step 2: Convert to fraction form
    85,282.72/127,909.68 = 22,939.36/x
  3. Step 3: Cross multiply
    85,282.72x = 127,909.68 × 22,939.36
  4. Step 4: Simplify right side
    85,282.72x = 2,934,166,197.00
  5. Step 5: Solve for x
    x = 2,934,166,197.00/85,282.72
  6. Step 6: Final answer
    x = 34,405.17

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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.