Home / 43,306.29-64,961.96-12,143.97

Finding the Fourth Proportional to 43,306.29, 64,961.96 and 12,143.97

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Solution

The fourth proportional to 43,306.29, 64,961.96 and 12,143.97 is: 18,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,306.29 : 64,961.96 = 12,143.97 : x
  2. Step 2: Convert to fraction form
    43,306.29/64,961.96 = 12,143.97/x
  3. Step 3: Cross multiply
    43,306.29x = 64,961.96 × 12,143.97
  4. Step 4: Simplify right side
    43,306.29x = 788,896,032.66
  5. Step 5: Solve for x
    x = 788,896,032.66/43,306.29
  6. Step 6: Final answer
    x = 18,216.66

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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.