Home / 72,524.65-108,789.66-19,938.25

Finding the Fourth Proportional to 72,524.65, 108,789.66 and 19,938.25

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Solution

The fourth proportional to 72,524.65, 108,789.66 and 19,938.25 is: 29,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,524.65 : 108,789.66 = 19,938.25 : x
  2. Step 2: Convert to fraction form
    72,524.65/108,789.66 = 19,938.25/x
  3. Step 3: Cross multiply
    72,524.65x = 108,789.66 × 19,938.25
  4. Step 4: Simplify right side
    72,524.65x = 2,169,075,338.80
  5. Step 5: Solve for x
    x = 2,169,075,338.80/72,524.65
  6. Step 6: Final answer
    x = 29,908.11

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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.