Home / 69,668.64-96,144.12-42,435.36

Finding the Fourth Proportional to 69,668.64, 96,144.12 and 42,435.36

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Solution

The fourth proportional to 69,668.64, 96,144.12 and 42,435.36 is: 58,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,668.64 : 96,144.12 = 42,435.36 : x
  2. Step 2: Convert to fraction form
    69,668.64/96,144.12 = 42,435.36/x
  3. Step 3: Cross multiply
    69,668.64x = 96,144.12 × 42,435.36
  4. Step 4: Simplify right side
    69,668.64x = 4,079,910,344.08
  5. Step 5: Solve for x
    x = 4,079,910,344.08/69,668.64
  6. Step 6: Final answer
    x = 58,561.65

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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.