Home / 80,655.29-121,007.54-41,240.08

Finding the Fourth Proportional to 80,655.29, 121,007.54 and 41,240.08

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Solution

The fourth proportional to 80,655.29, 121,007.54 and 41,240.08 is: 61,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.29 : 121,007.54 = 41,240.08 : x
  2. Step 2: Convert to fraction form
    80,655.29/121,007.54 = 41,240.08/x
  3. Step 3: Cross multiply
    80,655.29x = 121,007.54 × 41,240.08
  4. Step 4: Simplify right side
    80,655.29x = 4,990,360,430.78
  5. Step 5: Solve for x
    x = 4,990,360,430.78/80,655.29
  6. Step 6: Final answer
    x = 61,872.70

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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.