Home / 78,867.46-108,837.30-43,057.77

Finding the Fourth Proportional to 78,867.46, 108,837.30 and 43,057.77

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Solution

The fourth proportional to 78,867.46, 108,837.30 and 43,057.77 is: 59,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,867.46 : 108,837.30 = 43,057.77 : x
  2. Step 2: Convert to fraction form
    78,867.46/108,837.30 = 43,057.77/x
  3. Step 3: Cross multiply
    78,867.46x = 108,837.30 × 43,057.77
  4. Step 4: Simplify right side
    78,867.46x = 4,686,291,430.82
  5. Step 5: Solve for x
    x = 4,686,291,430.82/78,867.46
  6. Step 6: Final answer
    x = 59,419.83

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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.