Home / 67,838.85-101,729.12-21,095.37

Finding the Fourth Proportional to 67,838.85, 101,729.12 and 21,095.37

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Solution

The fourth proportional to 67,838.85, 101,729.12 and 21,095.37 is: 31,633.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,838.85 : 101,729.12 = 21,095.37 : x
  2. Step 2: Convert to fraction form
    67,838.85/101,729.12 = 21,095.37/x
  3. Step 3: Cross multiply
    67,838.85x = 101,729.12 × 21,095.37
  4. Step 4: Simplify right side
    67,838.85x = 2,146,013,320.70
  5. Step 5: Solve for x
    x = 2,146,013,320.70/67,838.85
  6. Step 6: Final answer
    x = 31,633.99

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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.