Home / 88,395.38-121,983.28-48,108.28

Finding the Fourth Proportional to 88,395.38, 121,983.28 and 48,108.28

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Solution

The fourth proportional to 88,395.38, 121,983.28 and 48,108.28 is: 66,388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,395.38 : 121,983.28 = 48,108.28 : x
  2. Step 2: Convert to fraction form
    88,395.38/121,983.28 = 48,108.28/x
  3. Step 3: Cross multiply
    88,395.38x = 121,983.28 × 48,108.28
  4. Step 4: Simplify right side
    88,395.38x = 5,868,405,789.56
  5. Step 5: Solve for x
    x = 5,868,405,789.56/88,395.38
  6. Step 6: Final answer
    x = 66,388.15

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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.