Home / 66,294.87-99,432.43-21,921.85

Finding the Fourth Proportional to 66,294.87, 99,432.43 and 21,921.85

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Solution

The fourth proportional to 66,294.87, 99,432.43 and 21,921.85 is: 32,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,294.87 : 99,432.43 = 21,921.85 : x
  2. Step 2: Convert to fraction form
    66,294.87/99,432.43 = 21,921.85/x
  3. Step 3: Cross multiply
    66,294.87x = 99,432.43 × 21,921.85
  4. Step 4: Simplify right side
    66,294.87x = 2,179,742,885.08
  5. Step 5: Solve for x
    x = 2,179,742,885.08/66,294.87
  6. Step 6: Final answer
    x = 32,879.51

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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.