Home / 48,409.56-72,642.75-20,327.45

Finding the Fourth Proportional to 48,409.56, 72,642.75 and 20,327.45

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Solution

The fourth proportional to 48,409.56, 72,642.75 and 20,327.45 is: 30,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,409.56 : 72,642.75 = 20,327.45 : x
  2. Step 2: Convert to fraction form
    48,409.56/72,642.75 = 20,327.45/x
  3. Step 3: Cross multiply
    48,409.56x = 72,642.75 × 20,327.45
  4. Step 4: Simplify right side
    48,409.56x = 1,476,641,505.27
  5. Step 5: Solve for x
    x = 1,476,641,505.27/48,409.56
  6. Step 6: Final answer
    x = 30,503.10

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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.