Home / 48,408.56-72,641.25-20,326.45

Finding the Fourth Proportional to 48,408.56, 72,641.25 and 20,326.45

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Solution

The fourth proportional to 48,408.56, 72,641.25 and 20,326.45 is: 30,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.56 : 72,641.25 = 20,326.45 : x
  2. Step 2: Convert to fraction form
    48,408.56/72,641.25 = 20,326.45/x
  3. Step 3: Cross multiply
    48,408.56x = 72,641.25 × 20,326.45
  4. Step 4: Simplify right side
    48,408.56x = 1,476,538,372.86
  5. Step 5: Solve for x
    x = 1,476,538,372.86/48,408.56
  6. Step 6: Final answer
    x = 30,501.60

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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.