Home / 66,432.69-91,684.31-40,933.64

Finding the Fourth Proportional to 66,432.69, 91,684.31 and 40,933.64

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Solution

The fourth proportional to 66,432.69, 91,684.31 and 40,933.64 is: 56,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.69 : 91,684.31 = 40,933.64 : x
  2. Step 2: Convert to fraction form
    66,432.69/91,684.31 = 40,933.64/x
  3. Step 3: Cross multiply
    66,432.69x = 91,684.31 × 40,933.64
  4. Step 4: Simplify right side
    66,432.69x = 3,752,971,876.10
  5. Step 5: Solve for x
    x = 3,752,971,876.10/66,432.69
  6. Step 6: Final answer
    x = 56,492.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.