Home / 75,131.67-103,686.70-43,302.62

Finding the Fourth Proportional to 75,131.67, 103,686.70 and 43,302.62

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Solution

The fourth proportional to 75,131.67, 103,686.70 and 43,302.62 is: 59,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,131.67 : 103,686.70 = 43,302.62 : x
  2. Step 2: Convert to fraction form
    75,131.67/103,686.70 = 43,302.62/x
  3. Step 3: Cross multiply
    75,131.67x = 103,686.70 × 43,302.62
  4. Step 4: Simplify right side
    75,131.67x = 4,489,905,769.15
  5. Step 5: Solve for x
    x = 4,489,905,769.15/75,131.67
  6. Step 6: Final answer
    x = 59,760.49

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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.