Home / 66,286.28-99,429.39-54,574.88

Finding the Fourth Proportional to 66,286.28, 99,429.39 and 54,574.88

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Solution

The fourth proportional to 66,286.28, 99,429.39 and 54,574.88 is: 81,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,286.28 : 99,429.39 = 54,574.88 : x
  2. Step 2: Convert to fraction form
    66,286.28/99,429.39 = 54,574.88/x
  3. Step 3: Cross multiply
    66,286.28x = 99,429.39 × 54,574.88
  4. Step 4: Simplify right side
    66,286.28x = 5,426,347,027.72
  5. Step 5: Solve for x
    x = 5,426,347,027.72/66,286.28
  6. Step 6: Final answer
    x = 81,862.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.