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Finding the Fourth Proportional to 88,141, 121,634.58 and 48,397

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Solution

The fourth proportional to 88,141, 121,634.58 and 48,397 is: 66,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,141 : 121,634.58 = 48,397 : x
  2. Step 2: Convert to fraction form
    88,141/121,634.58 = 48,397/x
  3. Step 3: Cross multiply
    88,141x = 121,634.58 × 48,397
  4. Step 4: Simplify right side
    88,141x = 5,886,748,768.26
  5. Step 5: Solve for x
    x = 5,886,748,768.26/88,141
  6. Step 6: Final answer
    x = 66,787.86

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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.