Home / 67,815.90-101,733.45-21,063.90

Finding the Fourth Proportional to 67,815.90, 101,733.45 and 21,063.90

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Solution

The fourth proportional to 67,815.90, 101,733.45 and 21,063.90 is: 31,598.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,815.90 : 101,733.45 = 21,063.90 : x
  2. Step 2: Convert to fraction form
    67,815.90/101,733.45 = 21,063.90/x
  3. Step 3: Cross multiply
    67,815.90x = 101,733.45 × 21,063.90
  4. Step 4: Simplify right side
    67,815.90x = 2,142,903,217.46
  5. Step 5: Solve for x
    x = 2,142,903,217.46/67,815.90
  6. Step 6: Final answer
    x = 31,598.83

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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.