Home / 67,926.36-101,870.10-21,166.68

Finding the Fourth Proportional to 67,926.36, 101,870.10 and 21,166.68

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Solution

The fourth proportional to 67,926.36, 101,870.10 and 21,166.68 is: 31,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,926.36 : 101,870.10 = 21,166.68 : x
  2. Step 2: Convert to fraction form
    67,926.36/101,870.10 = 21,166.68/x
  3. Step 3: Cross multiply
    67,926.36x = 101,870.10 × 21,166.68
  4. Step 4: Simplify right side
    67,926.36x = 2,156,251,808.27
  5. Step 5: Solve for x
    x = 2,156,251,808.27/67,926.36
  6. Step 6: Final answer
    x = 31,743.96

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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.