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Finding the Fourth Proportional to 48,821.40, 73,240.20 and 19,240.20

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Solution

The fourth proportional to 48,821.40, 73,240.20 and 19,240.20 is: 28,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,821.40 : 73,240.20 = 19,240.20 : x
  2. Step 2: Convert to fraction form
    48,821.40/73,240.20 = 19,240.20/x
  3. Step 3: Cross multiply
    48,821.40x = 73,240.20 × 19,240.20
  4. Step 4: Simplify right side
    48,821.40x = 1,409,156,096.04
  5. Step 5: Solve for x
    x = 1,409,156,096.04/48,821.40
  6. Step 6: Final answer
    x = 28,863.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.