Home / 87,748.16-121,085.28-50,015.36

Finding the Fourth Proportional to 87,748.16, 121,085.28 and 50,015.36

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Solution

The fourth proportional to 87,748.16, 121,085.28 and 50,015.36 is: 69,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,748.16 : 121,085.28 = 50,015.36 : x
  2. Step 2: Convert to fraction form
    87,748.16/121,085.28 = 50,015.36/x
  3. Step 3: Cross multiply
    87,748.16x = 121,085.28 × 50,015.36
  4. Step 4: Simplify right side
    87,748.16x = 6,056,123,869.90
  5. Step 5: Solve for x
    x = 6,056,123,869.90/87,748.16
  6. Step 6: Final answer
    x = 69,017.10

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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.