Home / 66,468.38-91,756.96-57,357.50

Finding the Fourth Proportional to 66,468.38, 91,756.96 and 57,357.50

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Solution

The fourth proportional to 66,468.38, 91,756.96 and 57,357.50 is: 79,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468.38 : 91,756.96 = 57,357.50 : x
  2. Step 2: Convert to fraction form
    66,468.38/91,756.96 = 57,357.50/x
  3. Step 3: Cross multiply
    66,468.38x = 91,756.96 × 57,357.50
  4. Step 4: Simplify right side
    66,468.38x = 5,262,949,833.20
  5. Step 5: Solve for x
    x = 5,262,949,833.20/66,468.38
  6. Step 6: Final answer
    x = 79,179.75

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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.