Home / 75,812.76-113,741.01-31,431.24

Finding the Fourth Proportional to 75,812.76, 113,741.01 and 31,431.24

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Solution

The fourth proportional to 75,812.76, 113,741.01 and 31,431.24 is: 47,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,812.76 : 113,741.01 = 31,431.24 : x
  2. Step 2: Convert to fraction form
    75,812.76/113,741.01 = 31,431.24/x
  3. Step 3: Cross multiply
    75,812.76x = 113,741.01 × 31,431.24
  4. Step 4: Simplify right side
    75,812.76x = 3,575,020,983.15
  5. Step 5: Solve for x
    x = 3,575,020,983.15/75,812.76
  6. Step 6: Final answer
    x = 47,155.93

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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.