Home / 78,813.30-108,763.92-43,004.28

Finding the Fourth Proportional to 78,813.30, 108,763.92 and 43,004.28

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Solution

The fourth proportional to 78,813.30, 108,763.92 and 43,004.28 is: 59,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813.30 : 108,763.92 = 43,004.28 : x
  2. Step 2: Convert to fraction form
    78,813.30/108,763.92 = 43,004.28/x
  3. Step 3: Cross multiply
    78,813.30x = 108,763.92 × 43,004.28
  4. Step 4: Simplify right side
    78,813.30x = 4,677,314,069.58
  5. Step 5: Solve for x
    x = 4,677,314,069.58/78,813.30
  6. Step 6: Final answer
    x = 59,346.76

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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.