Home / 74,242.49-111,380.12-21,656.09

Finding the Fourth Proportional to 74,242.49, 111,380.12 and 21,656.09

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Solution

The fourth proportional to 74,242.49, 111,380.12 and 21,656.09 is: 32,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,242.49 : 111,380.12 = 21,656.09 : x
  2. Step 2: Convert to fraction form
    74,242.49/111,380.12 = 21,656.09/x
  3. Step 3: Cross multiply
    74,242.49x = 111,380.12 × 21,656.09
  4. Step 4: Simplify right side
    74,242.49x = 2,412,057,902.93
  5. Step 5: Solve for x
    x = 2,412,057,902.93/74,242.49
  6. Step 6: Final answer
    x = 32,488.91

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1.5x scale

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.