Home / 45,279.76-67,920.26-12,003.04

Finding the Fourth Proportional to 45,279.76, 67,920.26 and 12,003.04

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Solution

The fourth proportional to 45,279.76, 67,920.26 and 12,003.04 is: 18,004.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,279.76 : 67,920.26 = 12,003.04 : x
  2. Step 2: Convert to fraction form
    45,279.76/67,920.26 = 12,003.04/x
  3. Step 3: Cross multiply
    45,279.76x = 67,920.26 × 12,003.04
  4. Step 4: Simplify right side
    45,279.76x = 815,249,597.59
  5. Step 5: Solve for x
    x = 815,249,597.59/45,279.76
  6. Step 6: Final answer
    x = 18,004.72

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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.