Home / 75,145.67-103,701.03-43,316.62

Finding the Fourth Proportional to 75,145.67, 103,701.03 and 43,316.62

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Solution

The fourth proportional to 75,145.67, 103,701.03 and 43,316.62 is: 59,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,145.67 : 103,701.03 = 43,316.62 : x
  2. Step 2: Convert to fraction form
    75,145.67/103,701.03 = 43,316.62/x
  3. Step 3: Cross multiply
    75,145.67x = 103,701.03 × 43,316.62
  4. Step 4: Simplify right side
    75,145.67x = 4,491,978,110.12
  5. Step 5: Solve for x
    x = 4,491,978,110.12/75,145.67
  6. Step 6: Final answer
    x = 59,776.94

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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.