Home / 48,900.36-73,381.43-20,820.43

Finding the Fourth Proportional to 48,900.36, 73,381.43 and 20,820.43

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Solution

The fourth proportional to 48,900.36, 73,381.43 and 20,820.43 is: 31,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,900.36 : 73,381.43 = 20,820.43 : x
  2. Step 2: Convert to fraction form
    48,900.36/73,381.43 = 20,820.43/x
  3. Step 3: Cross multiply
    48,900.36x = 73,381.43 × 20,820.43
  4. Step 4: Simplify right side
    48,900.36x = 1,527,832,926.61
  5. Step 5: Solve for x
    x = 1,527,832,926.61/48,900.36
  6. Step 6: Final answer
    x = 31,243.80

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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.