Home / 69,587.10-104,380.65-39,989.70

Finding the Fourth Proportional to 69,587.10, 104,380.65 and 39,989.70

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Solution

The fourth proportional to 69,587.10, 104,380.65 and 39,989.70 is: 59,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,587.10 : 104,380.65 = 39,989.70 : x
  2. Step 2: Convert to fraction form
    69,587.10/104,380.65 = 39,989.70/x
  3. Step 3: Cross multiply
    69,587.10x = 104,380.65 × 39,989.70
  4. Step 4: Simplify right side
    69,587.10x = 4,174,150,879.31
  5. Step 5: Solve for x
    x = 4,174,150,879.31/69,587.10
  6. Step 6: Final answer
    x = 59,984.55

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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.