Home / 45,040.82-67,561.08-31,658.72

Finding the Fourth Proportional to 45,040.82, 67,561.08 and 31,658.72

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Solution

The fourth proportional to 45,040.82, 67,561.08 and 31,658.72 is: 47,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,040.82 : 67,561.08 = 31,658.72 : x
  2. Step 2: Convert to fraction form
    45,040.82/67,561.08 = 31,658.72/x
  3. Step 3: Cross multiply
    45,040.82x = 67,561.08 × 31,658.72
  4. Step 4: Simplify right side
    45,040.82x = 2,138,896,976.81
  5. Step 5: Solve for x
    x = 2,138,896,976.81/45,040.82
  6. Step 6: Final answer
    x = 47,487.97

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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.