Home / 45,002.78-67,503.33-13,434.26

Finding the Fourth Proportional to 45,002.78, 67,503.33 and 13,434.26

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Solution

The fourth proportional to 45,002.78, 67,503.33 and 13,434.26 is: 20,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,002.78 : 67,503.33 = 13,434.26 : x
  2. Step 2: Convert to fraction form
    45,002.78/67,503.33 = 13,434.26/x
  3. Step 3: Cross multiply
    45,002.78x = 67,503.33 × 13,434.26
  4. Step 4: Simplify right side
    45,002.78x = 906,856,948.57
  5. Step 5: Solve for x
    x = 906,856,948.57/45,002.78
  6. Step 6: Final answer
    x = 20,151.13

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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.