Home / 71,902.08-99,222.12-40,069.44

Finding the Fourth Proportional to 71,902.08, 99,222.12 and 40,069.44

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Solution

The fourth proportional to 71,902.08, 99,222.12 and 40,069.44 is: 55,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,902.08 : 99,222.12 = 40,069.44 : x
  2. Step 2: Convert to fraction form
    71,902.08/99,222.12 = 40,069.44/x
  3. Step 3: Cross multiply
    71,902.08x = 99,222.12 × 40,069.44
  4. Step 4: Simplify right side
    71,902.08x = 3,975,774,784.01
  5. Step 5: Solve for x
    x = 3,975,774,784.01/71,902.08
  6. Step 6: Final answer
    x = 55,294.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.