Home / 69,988.48-104,895.23-55,138.75

Finding the Fourth Proportional to 69,988.48, 104,895.23 and 55,138.75

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Solution

The fourth proportional to 69,988.48, 104,895.23 and 55,138.75 is: 82,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,988.48 : 104,895.23 = 55,138.75 : x
  2. Step 2: Convert to fraction form
    69,988.48/104,895.23 = 55,138.75/x
  3. Step 3: Cross multiply
    69,988.48x = 104,895.23 × 55,138.75
  4. Step 4: Simplify right side
    69,988.48x = 5,783,791,863.16
  5. Step 5: Solve for x
    x = 5,783,791,863.16/69,988.48
  6. Step 6: Final answer
    x = 82,639.20

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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.