Home / 72,637.22-108,962.10-20,046.70

Finding the Fourth Proportional to 72,637.22, 108,962.10 and 20,046.70

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Solution

The fourth proportional to 72,637.22, 108,962.10 and 20,046.70 is: 30,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637.22 : 108,962.10 = 20,046.70 : x
  2. Step 2: Convert to fraction form
    72,637.22/108,962.10 = 20,046.70/x
  3. Step 3: Cross multiply
    72,637.22x = 108,962.10 × 20,046.70
  4. Step 4: Simplify right side
    72,637.22x = 2,184,330,530.07
  5. Step 5: Solve for x
    x = 2,184,330,530.07/72,637.22
  6. Step 6: Final answer
    x = 30,071.78

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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.