Home / 67,936.40-101,909.10-18,015.80

Finding the Fourth Proportional to 67,936.40, 101,909.10 and 18,015.80

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Solution

The fourth proportional to 67,936.40, 101,909.10 and 18,015.80 is: 27,024.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,936.40 : 101,909.10 = 18,015.80 : x
  2. Step 2: Convert to fraction form
    67,936.40/101,909.10 = 18,015.80/x
  3. Step 3: Cross multiply
    67,936.40x = 101,909.10 × 18,015.80
  4. Step 4: Simplify right side
    67,936.40x = 1,835,973,963.78
  5. Step 5: Solve for x
    x = 1,835,973,963.78/67,936.40
  6. Step 6: Final answer
    x = 27,024.89

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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.