Home / 45,126.18-67,615.29-31,954.91

Finding the Fourth Proportional to 45,126.18, 67,615.29 and 31,954.91

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Solution

The fourth proportional to 45,126.18, 67,615.29 and 31,954.91 is: 47,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,126.18 : 67,615.29 = 31,954.91 : x
  2. Step 2: Convert to fraction form
    45,126.18/67,615.29 = 31,954.91/x
  3. Step 3: Cross multiply
    45,126.18x = 67,615.29 × 31,954.91
  4. Step 4: Simplify right side
    45,126.18x = 2,160,640,168.50
  5. Step 5: Solve for x
    x = 2,160,640,168.50/45,126.18
  6. Step 6: Final answer
    x = 47,879.97

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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.