Home / 48,288.45-72,419.60-20,202.75

Finding the Fourth Proportional to 48,288.45, 72,419.60 and 20,202.75

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Solution

The fourth proportional to 48,288.45, 72,419.60 and 20,202.75 is: 30,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,288.45 : 72,419.60 = 20,202.75 : x
  2. Step 2: Convert to fraction form
    48,288.45/72,419.60 = 20,202.75/x
  3. Step 3: Cross multiply
    48,288.45x = 72,419.60 × 20,202.75
  4. Step 4: Simplify right side
    48,288.45x = 1,463,075,387.31
  5. Step 5: Solve for x
    x = 1,463,075,387.31/48,288.45
  6. Step 6: Final answer
    x = 30,298.66

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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.