Home / 66,547.28-99,756.12-54,092.72

Finding the Fourth Proportional to 66,547.28, 99,756.12 and 54,092.72

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Solution

The fourth proportional to 66,547.28, 99,756.12 and 54,092.72 is: 81,086.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.28 : 99,756.12 = 54,092.72 : x
  2. Step 2: Convert to fraction form
    66,547.28/99,756.12 = 54,092.72/x
  3. Step 3: Cross multiply
    66,547.28x = 99,756.12 × 54,092.72
  4. Step 4: Simplify right side
    66,547.28x = 5,396,079,867.45
  5. Step 5: Solve for x
    x = 5,396,079,867.45/66,547.28
  6. Step 6: Final answer
    x = 81,086.41

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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.