Home / 49,616.40-74,320.28-40,285.20

Finding the Fourth Proportional to 49,616.40, 74,320.28 and 40,285.20

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Solution

The fourth proportional to 49,616.40, 74,320.28 and 40,285.20 is: 60,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,616.40 : 74,320.28 = 40,285.20 : x
  2. Step 2: Convert to fraction form
    49,616.40/74,320.28 = 40,285.20/x
  3. Step 3: Cross multiply
    49,616.40x = 74,320.28 × 40,285.20
  4. Step 4: Simplify right side
    49,616.40x = 2,994,007,343.86
  5. Step 5: Solve for x
    x = 2,994,007,343.86/49,616.40
  6. Step 6: Final answer
    x = 60,343.10

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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.