Home / 79,268.28-118,902.18-20,103.81

Finding the Fourth Proportional to 79,268.28, 118,902.18 and 20,103.81

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Solution

The fourth proportional to 79,268.28, 118,902.18 and 20,103.81 is: 30,155.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.28 : 118,902.18 = 20,103.81 : x
  2. Step 2: Convert to fraction form
    79,268.28/118,902.18 = 20,103.81/x
  3. Step 3: Cross multiply
    79,268.28x = 118,902.18 × 20,103.81
  4. Step 4: Simplify right side
    79,268.28x = 2,390,386,835.31
  5. Step 5: Solve for x
    x = 2,390,386,835.31/79,268.28
  6. Step 6: Final answer
    x = 30,155.65

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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.