Home / 58,565.20-80,778.29-40,422.90

Finding the Fourth Proportional to 58,565.20, 80,778.29 and 40,422.90

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Solution

The fourth proportional to 58,565.20, 80,778.29 and 40,422.90 is: 55,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,565.20 : 80,778.29 = 40,422.90 : x
  2. Step 2: Convert to fraction form
    58,565.20/80,778.29 = 40,422.90/x
  3. Step 3: Cross multiply
    58,565.20x = 80,778.29 × 40,422.90
  4. Step 4: Simplify right side
    58,565.20x = 3,265,292,498.96
  5. Step 5: Solve for x
    x = 3,265,292,498.96/58,565.20
  6. Step 6: Final answer
    x = 55,754.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.