Home / 67,320.40-101,000.28-19,936.72

Finding the Fourth Proportional to 67,320.40, 101,000.28 and 19,936.72

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Solution

The fourth proportional to 67,320.40, 101,000.28 and 19,936.72 is: 29,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,320.40 : 101,000.28 = 19,936.72 : x
  2. Step 2: Convert to fraction form
    67,320.40/101,000.28 = 19,936.72/x
  3. Step 3: Cross multiply
    67,320.40x = 101,000.28 × 19,936.72
  4. Step 4: Simplify right side
    67,320.40x = 2,013,614,302.28
  5. Step 5: Solve for x
    x = 2,013,614,302.28/67,320.40
  6. Step 6: Final answer
    x = 29,910.91

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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.