Home / 83,943.18-115,606.76-69,664.50

Finding the Fourth Proportional to 83,943.18, 115,606.76 and 69,664.50

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Solution

The fourth proportional to 83,943.18, 115,606.76 and 69,664.50 is: 95,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,943.18 : 115,606.76 = 69,664.50 : x
  2. Step 2: Convert to fraction form
    83,943.18/115,606.76 = 69,664.50/x
  3. Step 3: Cross multiply
    83,943.18x = 115,606.76 × 69,664.50
  4. Step 4: Simplify right side
    83,943.18x = 8,053,686,783.70
  5. Step 5: Solve for x
    x = 8,053,686,783.70/83,943.18
  6. Step 6: Final answer
    x = 95,942.12

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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.