Home / 69,909.24-96,390.90-57,115.02

Finding the Fourth Proportional to 69,909.24, 96,390.90 and 57,115.02

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Solution

The fourth proportional to 69,909.24, 96,390.90 and 57,115.02 is: 78,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,909.24 : 96,390.90 = 57,115.02 : x
  2. Step 2: Convert to fraction form
    69,909.24/96,390.90 = 57,115.02/x
  3. Step 3: Cross multiply
    69,909.24x = 96,390.90 × 57,115.02
  4. Step 4: Simplify right side
    69,909.24x = 5,505,368,181.32
  5. Step 5: Solve for x
    x = 5,505,368,181.32/69,909.24
  6. Step 6: Final answer
    x = 78,750.22

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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.