Home / 48,409.46-72,642.61-20,327.36

Finding the Fourth Proportional to 48,409.46, 72,642.61 and 20,327.36

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Solution

The fourth proportional to 48,409.46, 72,642.61 and 20,327.36 is: 30,502.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,409.46 : 72,642.61 = 20,327.36 : x
  2. Step 2: Convert to fraction form
    48,409.46/72,642.61 = 20,327.36/x
  3. Step 3: Cross multiply
    48,409.46x = 72,642.61 × 20,327.36
  4. Step 4: Simplify right side
    48,409.46x = 1,476,632,484.81
  5. Step 5: Solve for x
    x = 1,476,632,484.81/48,409.46
  6. Step 6: Final answer
    x = 30,502.97

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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.