Home / 81,769.51-112,851.27-45,474.57

Finding the Fourth Proportional to 81,769.51, 112,851.27 and 45,474.57

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Solution

The fourth proportional to 81,769.51, 112,851.27 and 45,474.57 is: 62,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,769.51 : 112,851.27 = 45,474.57 : x
  2. Step 2: Convert to fraction form
    81,769.51/112,851.27 = 45,474.57/x
  3. Step 3: Cross multiply
    81,769.51x = 112,851.27 × 45,474.57
  4. Step 4: Simplify right side
    81,769.51x = 5,131,862,977.20
  5. Step 5: Solve for x
    x = 5,131,862,977.20/81,769.51
  6. Step 6: Final answer
    x = 62,760.10

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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.