Home / 69,886.16-96,418.92-39,669.20

Finding the Fourth Proportional to 69,886.16, 96,418.92 and 39,669.20

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Solution

The fourth proportional to 69,886.16, 96,418.92 and 39,669.20 is: 54,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,886.16 : 96,418.92 = 39,669.20 : x
  2. Step 2: Convert to fraction form
    69,886.16/96,418.92 = 39,669.20/x
  3. Step 3: Cross multiply
    69,886.16x = 96,418.92 × 39,669.20
  4. Step 4: Simplify right side
    69,886.16x = 3,824,861,421.26
  5. Step 5: Solve for x
    x = 3,824,861,421.26/69,886.16
  6. Step 6: Final answer
    x = 54,729.88

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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.