Home / 45,040.69-67,560.90-31,658.59

Finding the Fourth Proportional to 45,040.69, 67,560.90 and 31,658.59

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Solution

The fourth proportional to 45,040.69, 67,560.90 and 31,658.59 is: 47,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,040.69 : 67,560.90 = 31,658.59 : x
  2. Step 2: Convert to fraction form
    45,040.69/67,560.90 = 31,658.59/x
  3. Step 3: Cross multiply
    45,040.69x = 67,560.90 × 31,658.59
  4. Step 4: Simplify right side
    45,040.69x = 2,138,882,833.13
  5. Step 5: Solve for x
    x = 2,138,882,833.13/45,040.69
  6. Step 6: Final answer
    x = 47,487.79

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1.5x scale

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.