Home / 66,414.08-99,621.12-38,376.96

Finding the Fourth Proportional to 66,414.08, 99,621.12 and 38,376.96

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Solution

The fourth proportional to 66,414.08, 99,621.12 and 38,376.96 is: 57,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.08 : 99,621.12 = 38,376.96 : x
  2. Step 2: Convert to fraction form
    66,414.08/99,621.12 = 38,376.96/x
  3. Step 3: Cross multiply
    66,414.08x = 99,621.12 × 38,376.96
  4. Step 4: Simplify right side
    66,414.08x = 3,823,155,737.40
  5. Step 5: Solve for x
    x = 3,823,155,737.40/66,414.08
  6. Step 6: Final answer
    x = 57,565.44

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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.