Home / 80,726.86-121,090.39-38,597.04

Finding the Fourth Proportional to 80,726.86, 121,090.39 and 38,597.04

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Solution

The fourth proportional to 80,726.86, 121,090.39 and 38,597.04 is: 57,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,726.86 : 121,090.39 = 38,597.04 : x
  2. Step 2: Convert to fraction form
    80,726.86/121,090.39 = 38,597.04/x
  3. Step 3: Cross multiply
    80,726.86x = 121,090.39 × 38,597.04
  4. Step 4: Simplify right side
    80,726.86x = 4,673,730,626.45
  5. Step 5: Solve for x
    x = 4,673,730,626.45/80,726.86
  6. Step 6: Final answer
    x = 57,895.61

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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.