Home / 48,997.20-67,619.76-27,778.40

Finding the Fourth Proportional to 48,997.20, 67,619.76 and 27,778.40

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Solution

The fourth proportional to 48,997.20, 67,619.76 and 27,778.40 is: 38,336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,997.20 : 67,619.76 = 27,778.40 : x
  2. Step 2: Convert to fraction form
    48,997.20/67,619.76 = 27,778.40/x
  3. Step 3: Cross multiply
    48,997.20x = 67,619.76 × 27,778.40
  4. Step 4: Simplify right side
    48,997.20x = 1,878,368,741.18
  5. Step 5: Solve for x
    x = 1,878,368,741.18/48,997.20
  6. Step 6: Final answer
    x = 38,336.25

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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.