Home / 48,928.56-67,515.10-28,778.09

Finding the Fourth Proportional to 48,928.56, 67,515.10 and 28,778.09

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Solution

The fourth proportional to 48,928.56, 67,515.10 and 28,778.09 is: 39,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,928.56 : 67,515.10 = 28,778.09 : x
  2. Step 2: Convert to fraction form
    48,928.56/67,515.10 = 28,778.09/x
  3. Step 3: Cross multiply
    48,928.56x = 67,515.10 × 28,778.09
  4. Step 4: Simplify right side
    48,928.56x = 1,942,955,467.82
  5. Step 5: Solve for x
    x = 1,942,955,467.82/48,928.56
  6. Step 6: Final answer
    x = 39,710.05

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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.