Home / 48,639.19-67,122.30-28,499.65

Finding the Fourth Proportional to 48,639.19, 67,122.30 and 28,499.65

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Solution

The fourth proportional to 48,639.19, 67,122.30 and 28,499.65 is: 39,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,639.19 : 67,122.30 = 28,499.65 : x
  2. Step 2: Convert to fraction form
    48,639.19/67,122.30 = 28,499.65/x
  3. Step 3: Cross multiply
    48,639.19x = 67,122.30 × 28,499.65
  4. Step 4: Simplify right side
    48,639.19x = 1,912,962,057.20
  5. Step 5: Solve for x
    x = 1,912,962,057.20/48,639.19
  6. Step 6: Final answer
    x = 39,329.64

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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.