Home / 72,525.25-108,785.45-29,829.20

Finding the Fourth Proportional to 72,525.25, 108,785.45 and 29,829.20

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Solution

The fourth proportional to 72,525.25, 108,785.45 and 29,829.20 is: 44,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,525.25 : 108,785.45 = 29,829.20 : x
  2. Step 2: Convert to fraction form
    72,525.25/108,785.45 = 29,829.20/x
  3. Step 3: Cross multiply
    72,525.25x = 108,785.45 × 29,829.20
  4. Step 4: Simplify right side
    72,525.25x = 3,244,983,019.71
  5. Step 5: Solve for x
    x = 3,244,983,019.71/72,525.25
  6. Step 6: Final answer
    x = 44,742.81

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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.