Home / 80,126.08-120,085.44-38,550.40

Finding the Fourth Proportional to 80,126.08, 120,085.44 and 38,550.40

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Solution

The fourth proportional to 80,126.08, 120,085.44 and 38,550.40 is: 57,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,126.08 : 120,085.44 = 38,550.40 : x
  2. Step 2: Convert to fraction form
    80,126.08/120,085.44 = 38,550.40/x
  3. Step 3: Cross multiply
    80,126.08x = 120,085.44 × 38,550.40
  4. Step 4: Simplify right side
    80,126.08x = 4,629,341,746.18
  5. Step 5: Solve for x
    x = 4,629,341,746.18/80,126.08
  6. Step 6: Final answer
    x = 57,775.72

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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.