Home / 66,246.72-99,355.13-18,860.76

Finding the Fourth Proportional to 66,246.72, 99,355.13 and 18,860.76

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Solution

The fourth proportional to 66,246.72, 99,355.13 and 18,860.76 is: 28,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.72 : 99,355.13 = 18,860.76 : x
  2. Step 2: Convert to fraction form
    66,246.72/99,355.13 = 18,860.76/x
  3. Step 3: Cross multiply
    66,246.72x = 99,355.13 × 18,860.76
  4. Step 4: Simplify right side
    66,246.72x = 1,873,913,167.40
  5. Step 5: Solve for x
    x = 1,873,913,167.40/66,246.72
  6. Step 6: Final answer
    x = 28,286.88

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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.