Home / 69,939.10-96,478.05-41,639.32

Finding the Fourth Proportional to 69,939.10, 96,478.05 and 41,639.32

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Solution

The fourth proportional to 69,939.10, 96,478.05 and 41,639.32 is: 57,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,939.10 : 96,478.05 = 41,639.32 : x
  2. Step 2: Convert to fraction form
    69,939.10/96,478.05 = 41,639.32/x
  3. Step 3: Cross multiply
    69,939.10x = 96,478.05 × 41,639.32
  4. Step 4: Simplify right side
    69,939.10x = 4,017,280,396.93
  5. Step 5: Solve for x
    x = 4,017,280,396.93/69,939.10
  6. Step 6: Final answer
    x = 57,439.69

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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.