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Finding the Fourth Proportional to 81,248.86, 121,915.79 and 33,253.10

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Solution

The fourth proportional to 81,248.86, 121,915.79 and 33,253.10 is: 49,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,248.86 : 121,915.79 = 33,253.10 : x
  2. Step 2: Convert to fraction form
    81,248.86/121,915.79 = 33,253.10/x
  3. Step 3: Cross multiply
    81,248.86x = 121,915.79 × 33,253.10
  4. Step 4: Simplify right side
    81,248.86x = 4,054,077,430.00
  5. Step 5: Solve for x
    x = 4,054,077,430.00/81,248.86
  6. Step 6: Final answer
    x = 49,897.04

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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.