Home / 48,419.78-72,629.68-13,362.18

Finding the Fourth Proportional to 48,419.78, 72,629.68 and 13,362.18

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Solution

The fourth proportional to 48,419.78, 72,629.68 and 13,362.18 is: 20,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,419.78 : 72,629.68 = 13,362.18 : x
  2. Step 2: Convert to fraction form
    48,419.78/72,629.68 = 13,362.18/x
  3. Step 3: Cross multiply
    48,419.78x = 72,629.68 × 13,362.18
  4. Step 4: Simplify right side
    48,419.78x = 970,490,857.50
  5. Step 5: Solve for x
    x = 970,490,857.50/48,419.78
  6. Step 6: Final answer
    x = 20,043.27

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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.