Home / 69,641.28-96,110.88-39,431.91

Finding the Fourth Proportional to 69,641.28, 96,110.88 and 39,431.91

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Solution

The fourth proportional to 69,641.28, 96,110.88 and 39,431.91 is: 54,419.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.28 : 96,110.88 = 39,431.91 : x
  2. Step 2: Convert to fraction form
    69,641.28/96,110.88 = 39,431.91/x
  3. Step 3: Cross multiply
    69,641.28x = 96,110.88 × 39,431.91
  4. Step 4: Simplify right side
    69,641.28x = 3,789,835,570.18
  5. Step 5: Solve for x
    x = 3,789,835,570.18/69,641.28
  6. Step 6: Final answer
    x = 54,419.38

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1.5x scale

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.