Home / 69,826.64-96,344.36-39,605

Finding the Fourth Proportional to 69,826.64, 96,344.36 and 39,605

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Solution

The fourth proportional to 69,826.64, 96,344.36 and 39,605 is: 54,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,826.64 : 96,344.36 = 39,605 : x
  2. Step 2: Convert to fraction form
    69,826.64/96,344.36 = 39,605/x
  3. Step 3: Cross multiply
    69,826.64x = 96,344.36 × 39,605
  4. Step 4: Simplify right side
    69,826.64x = 3,815,718,377.80
  5. Step 5: Solve for x
    x = 3,815,718,377.80/69,826.64
  6. Step 6: Final answer
    x = 54,645.60

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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.