Home / 72,438.72-108,672.66-25,695.24

Finding the Fourth Proportional to 72,438.72, 108,672.66 and 25,695.24

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Solution

The fourth proportional to 72,438.72, 108,672.66 and 25,695.24 is: 38,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,438.72 : 108,672.66 = 25,695.24 : x
  2. Step 2: Convert to fraction form
    72,438.72/108,672.66 = 25,695.24/x
  3. Step 3: Cross multiply
    72,438.72x = 108,672.66 × 25,695.24
  4. Step 4: Simplify right side
    72,438.72x = 2,792,370,080.14
  5. Step 5: Solve for x
    x = 2,792,370,080.14/72,438.72
  6. Step 6: Final answer
    x = 38,548.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.