Home / 78,848.61-118,229.16-26,229.39

Finding the Fourth Proportional to 78,848.61, 118,229.16 and 26,229.39

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Solution

The fourth proportional to 78,848.61, 118,229.16 and 26,229.39 is: 39,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.61 : 118,229.16 = 26,229.39 : x
  2. Step 2: Convert to fraction form
    78,848.61/118,229.16 = 26,229.39/x
  3. Step 3: Cross multiply
    78,848.61x = 118,229.16 × 26,229.39
  4. Step 4: Simplify right side
    78,848.61x = 3,101,078,747.01
  5. Step 5: Solve for x
    x = 3,101,078,747.01/78,848.61
  6. Step 6: Final answer
    x = 39,329.53

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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.