Home / 71,825.43-99,118.16-39,559.44

Finding the Fourth Proportional to 71,825.43, 99,118.16 and 39,559.44

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Solution

The fourth proportional to 71,825.43, 99,118.16 and 39,559.44 is: 54,591.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,825.43 : 99,118.16 = 39,559.44 : x
  2. Step 2: Convert to fraction form
    71,825.43/99,118.16 = 39,559.44/x
  3. Step 3: Cross multiply
    71,825.43x = 99,118.16 × 39,559.44
  4. Step 4: Simplify right side
    71,825.43x = 3,921,058,705.63
  5. Step 5: Solve for x
    x = 3,921,058,705.63/71,825.43
  6. Step 6: Final answer
    x = 54,591.51

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1.5x scale

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.