Home / 101,982.41-152,950.51-38,780

Finding the Fourth Proportional to 101,982.41, 152,950.51 and 38,780

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Solution

The fourth proportional to 101,982.41, 152,950.51 and 38,780 is: 58,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.41 : 152,950.51 = 38,780 : x
  2. Step 2: Convert to fraction form
    101,982.41/152,950.51 = 38,780/x
  3. Step 3: Cross multiply
    101,982.41x = 152,950.51 × 38,780
  4. Step 4: Simplify right side
    101,982.41x = 5,931,420,777.80
  5. Step 5: Solve for x
    x = 5,931,420,777.80/101,982.41
  6. Step 6: Final answer
    x = 58,161.21

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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.