Home / 85,747.04-128,625.42-26,591.12

Finding the Fourth Proportional to 85,747.04, 128,625.42 and 26,591.12

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Solution

The fourth proportional to 85,747.04, 128,625.42 and 26,591.12 is: 39,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,747.04 : 128,625.42 = 26,591.12 : x
  2. Step 2: Convert to fraction form
    85,747.04/128,625.42 = 26,591.12/x
  3. Step 3: Cross multiply
    85,747.04x = 128,625.42 × 26,591.12
  4. Step 4: Simplify right side
    85,747.04x = 3,420,293,556.99
  5. Step 5: Solve for x
    x = 3,420,293,556.99/85,747.04
  6. Step 6: Final answer
    x = 39,888.18

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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.