Home / 78,693.23-118,005.11-22,520.55

Finding the Fourth Proportional to 78,693.23, 118,005.11 and 22,520.55

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Solution

The fourth proportional to 78,693.23, 118,005.11 and 22,520.55 is: 33,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,693.23 : 118,005.11 = 22,520.55 : x
  2. Step 2: Convert to fraction form
    78,693.23/118,005.11 = 22,520.55/x
  3. Step 3: Cross multiply
    78,693.23x = 118,005.11 × 22,520.55
  4. Step 4: Simplify right side
    78,693.23x = 2,657,540,036.31
  5. Step 5: Solve for x
    x = 2,657,540,036.31/78,693.23
  6. Step 6: Final answer
    x = 33,770.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.