Home / 88,394.38-121,981.91-48,107.28

Finding the Fourth Proportional to 88,394.38, 121,981.91 and 48,107.28

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Solution

The fourth proportional to 88,394.38, 121,981.91 and 48,107.28 is: 66,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,394.38 : 121,981.91 = 48,107.28 : x
  2. Step 2: Convert to fraction form
    88,394.38/121,981.91 = 48,107.28/x
  3. Step 3: Cross multiply
    88,394.38x = 121,981.91 × 48,107.28
  4. Step 4: Simplify right side
    88,394.38x = 5,868,218,116.20
  5. Step 5: Solve for x
    x = 5,868,218,116.20/88,394.38
  6. Step 6: Final answer
    x = 66,386.78

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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.