Home / 78,375.12-108,158.45-42,565.83

Finding the Fourth Proportional to 78,375.12, 108,158.45 and 42,565.83

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Solution

The fourth proportional to 78,375.12, 108,158.45 and 42,565.83 is: 58,741.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,375.12 : 108,158.45 = 42,565.83 : x
  2. Step 2: Convert to fraction form
    78,375.12/108,158.45 = 42,565.83/x
  3. Step 3: Cross multiply
    78,375.12x = 108,158.45 × 42,565.83
  4. Step 4: Simplify right side
    78,375.12x = 4,603,854,195.76
  5. Step 5: Solve for x
    x = 4,603,854,195.76/78,375.12
  6. Step 6: Final answer
    x = 58,741.27

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