Home / 81,769.10-112,844.54-45,959.00

Finding the Fourth Proportional to 81,769.10, 112,844.54 and 45,959.00

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Solution

The fourth proportional to 81,769.10, 112,844.54 and 45,959.00 is: 63,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,769.10 : 112,844.54 = 45,959.00 : x
  2. Step 2: Convert to fraction form
    81,769.10/112,844.54 = 45,959.00/x
  3. Step 3: Cross multiply
    81,769.10x = 112,844.54 × 45,959.00
  4. Step 4: Simplify right side
    81,769.10x = 5,186,221,764.53
  5. Step 5: Solve for x
    x = 5,186,221,764.53/81,769.10
  6. Step 6: Final answer
    x = 63,425.21

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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.