Home / 45,138.15-67,668.96-25,422.36

Finding the Fourth Proportional to 45,138.15, 67,668.96 and 25,422.36

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Solution

The fourth proportional to 45,138.15, 67,668.96 and 25,422.36 is: 38,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,138.15 : 67,668.96 = 25,422.36 : x
  2. Step 2: Convert to fraction form
    45,138.15/67,668.96 = 25,422.36/x
  3. Step 3: Cross multiply
    45,138.15x = 67,668.96 × 25,422.36
  4. Step 4: Simplify right side
    45,138.15x = 1,720,304,661.95
  5. Step 5: Solve for x
    x = 1,720,304,661.95/45,138.15
  6. Step 6: Final answer
    x = 38,111.99

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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.