Home / 80,756.10-121,085.55-41,390.10

Finding the Fourth Proportional to 80,756.10, 121,085.55 and 41,390.10

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Solution

The fourth proportional to 80,756.10, 121,085.55 and 41,390.10 is: 62,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,756.10 : 121,085.55 = 41,390.10 : x
  2. Step 2: Convert to fraction form
    80,756.10/121,085.55 = 41,390.10/x
  3. Step 3: Cross multiply
    80,756.10x = 121,085.55 × 41,390.10
  4. Step 4: Simplify right side
    80,756.10x = 5,011,743,023.06
  5. Step 5: Solve for x
    x = 5,011,743,023.06/80,756.10
  6. Step 6: Final answer
    x = 62,060.24

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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.