Home / 78,558.46-108,354.72-48,304.18

Finding the Fourth Proportional to 78,558.46, 108,354.72 and 48,304.18

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Solution

The fourth proportional to 78,558.46, 108,354.72 and 48,304.18 is: 66,625.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558.46 : 108,354.72 = 48,304.18 : x
  2. Step 2: Convert to fraction form
    78,558.46/108,354.72 = 48,304.18/x
  3. Step 3: Cross multiply
    78,558.46x = 108,354.72 × 48,304.18
  4. Step 4: Simplify right side
    78,558.46x = 5,233,985,898.73
  5. Step 5: Solve for x
    x = 5,233,985,898.73/78,558.46
  6. Step 6: Final answer
    x = 66,625.36

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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.