Home / 48,137.18-72,218.10-20,047.89

Finding the Fourth Proportional to 48,137.18, 72,218.10 and 20,047.89

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Solution

The fourth proportional to 48,137.18, 72,218.10 and 20,047.89 is: 30,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,137.18 : 72,218.10 = 20,047.89 : x
  2. Step 2: Convert to fraction form
    48,137.18/72,218.10 = 20,047.89/x
  3. Step 3: Cross multiply
    48,137.18x = 72,218.10 × 20,047.89
  4. Step 4: Simplify right side
    48,137.18x = 1,447,820,524.81
  5. Step 5: Solve for x
    x = 1,447,820,524.81/48,137.18
  6. Step 6: Final answer
    x = 30,076.97

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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.