Home / 48,441.78-72,673.20-20,345.81

Finding the Fourth Proportional to 48,441.78, 72,673.20 and 20,345.81

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Solution

The fourth proportional to 48,441.78, 72,673.20 and 20,345.81 is: 30,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,441.78 : 72,673.20 = 20,345.81 : x
  2. Step 2: Convert to fraction form
    48,441.78/72,673.20 = 20,345.81/x
  3. Step 3: Cross multiply
    48,441.78x = 72,673.20 × 20,345.81
  4. Step 4: Simplify right side
    48,441.78x = 1,478,594,755.93
  5. Step 5: Solve for x
    x = 1,478,594,755.93/48,441.78
  6. Step 6: Final answer
    x = 30,523.13

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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.