Home / 48,719.12-73,086.30-20,639.24

Finding the Fourth Proportional to 48,719.12, 73,086.30 and 20,639.24

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Solution

The fourth proportional to 48,719.12, 73,086.30 and 20,639.24 is: 30,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,719.12 : 73,086.30 = 20,639.24 : x
  2. Step 2: Convert to fraction form
    48,719.12/73,086.30 = 20,639.24/x
  3. Step 3: Cross multiply
    48,719.12x = 73,086.30 × 20,639.24
  4. Step 4: Simplify right side
    48,719.12x = 1,508,445,686.41
  5. Step 5: Solve for x
    x = 1,508,445,686.41/48,719.12
  6. Step 6: Final answer
    x = 30,962.09

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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.