Home / 48,391.47-72,551.43-20,319.84

Finding the Fourth Proportional to 48,391.47, 72,551.43 and 20,319.84

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Solution

The fourth proportional to 48,391.47, 72,551.43 and 20,319.84 is: 30,464.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,391.47 : 72,551.43 = 20,319.84 : x
  2. Step 2: Convert to fraction form
    48,391.47/72,551.43 = 20,319.84/x
  3. Step 3: Cross multiply
    48,391.47x = 72,551.43 × 20,319.84
  4. Step 4: Simplify right side
    48,391.47x = 1,474,233,449.37
  5. Step 5: Solve for x
    x = 1,474,233,449.37/48,391.47
  6. Step 6: Final answer
    x = 30,464.74

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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.