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Finding the Fourth Proportional to 88,294, 121,845.72 and 48,550

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Solution

The fourth proportional to 88,294, 121,845.72 and 48,550 is: 66,999

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,294 : 121,845.72 = 48,550 : x
  2. Step 2: Convert to fraction form
    88,294/121,845.72 = 48,550/x
  3. Step 3: Cross multiply
    88,294x = 121,845.72 × 48,550
  4. Step 4: Simplify right side
    88,294x = 5,915,609,706
  5. Step 5: Solve for x
    x = 5,915,609,706/88,294
  6. Step 6: Final answer
    x = 66,999

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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.