Home / 43,712.70-65,564.01-12,125.10

Finding the Fourth Proportional to 43,712.70, 65,564.01 and 12,125.10

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Solution

The fourth proportional to 43,712.70, 65,564.01 and 12,125.10 is: 18,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,712.70 : 65,564.01 = 12,125.10 : x
  2. Step 2: Convert to fraction form
    43,712.70/65,564.01 = 12,125.10/x
  3. Step 3: Cross multiply
    43,712.70x = 65,564.01 × 12,125.10
  4. Step 4: Simplify right side
    43,712.70x = 794,970,177.65
  5. Step 5: Solve for x
    x = 794,970,177.65/43,712.70
  6. Step 6: Final answer
    x = 18,186.25

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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.