Home / 72,218.75-108,338.49-22,303.13

Finding the Fourth Proportional to 72,218.75, 108,338.49 and 22,303.13

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Solution

The fourth proportional to 72,218.75, 108,338.49 and 22,303.13 is: 33,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,218.75 : 108,338.49 = 22,303.13 : x
  2. Step 2: Convert to fraction form
    72,218.75/108,338.49 = 22,303.13/x
  3. Step 3: Cross multiply
    72,218.75x = 108,338.49 × 22,303.13
  4. Step 4: Simplify right side
    72,218.75x = 2,416,286,884.78
  5. Step 5: Solve for x
    x = 2,416,286,884.78/72,218.75
  6. Step 6: Final answer
    x = 33,457.89

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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.