Home / 69,880.28-96,435.96-39,666.54

Finding the Fourth Proportional to 69,880.28, 96,435.96 and 39,666.54

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Solution

The fourth proportional to 69,880.28, 96,435.96 and 39,666.54 is: 54,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,880.28 : 96,435.96 = 39,666.54 : x
  2. Step 2: Convert to fraction form
    69,880.28/96,435.96 = 39,666.54/x
  3. Step 3: Cross multiply
    69,880.28x = 96,435.96 × 39,666.54
  4. Step 4: Simplify right side
    69,880.28x = 3,825,280,864.78
  5. Step 5: Solve for x
    x = 3,825,280,864.78/69,880.28
  6. Step 6: Final answer
    x = 54,740.49

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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.