Home / 88,145.64-121,652.10-54,616.68

Finding the Fourth Proportional to 88,145.64, 121,652.10 and 54,616.68

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Solution

The fourth proportional to 88,145.64, 121,652.10 and 54,616.68 is: 75,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.64 : 121,652.10 = 54,616.68 : x
  2. Step 2: Convert to fraction form
    88,145.64/121,652.10 = 54,616.68/x
  3. Step 3: Cross multiply
    88,145.64x = 121,652.10 × 54,616.68
  4. Step 4: Simplify right side
    88,145.64x = 6,644,233,817.03
  5. Step 5: Solve for x
    x = 6,644,233,817.03/88,145.64
  6. Step 6: Final answer
    x = 75,377.91

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1.5x scale

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.