Home / 48,411.20-72,616.80-29,979.20

Finding the Fourth Proportional to 48,411.20, 72,616.80 and 29,979.20

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Solution

The fourth proportional to 48,411.20, 72,616.80 and 29,979.20 is: 44,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,411.20 : 72,616.80 = 29,979.20 : x
  2. Step 2: Convert to fraction form
    48,411.20/72,616.80 = 29,979.20/x
  3. Step 3: Cross multiply
    48,411.20x = 72,616.80 × 29,979.20
  4. Step 4: Simplify right side
    48,411.20x = 2,176,993,570.56
  5. Step 5: Solve for x
    x = 2,176,993,570.56/48,411.20
  6. Step 6: Final answer
    x = 44,968.80

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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.