Home / 75,985.38-113,969.16-31,600.62

Finding the Fourth Proportional to 75,985.38, 113,969.16 and 31,600.62

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Solution

The fourth proportional to 75,985.38, 113,969.16 and 31,600.62 is: 47,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,985.38 : 113,969.16 = 31,600.62 : x
  2. Step 2: Convert to fraction form
    75,985.38/113,969.16 = 31,600.62/x
  3. Step 3: Cross multiply
    75,985.38x = 113,969.16 × 31,600.62
  4. Step 4: Simplify right side
    75,985.38x = 3,601,496,116.88
  5. Step 5: Solve for x
    x = 3,601,496,116.88/75,985.38
  6. Step 6: Final answer
    x = 47,397.22

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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.