Home / 60,824.21-91,238.85-20,870.66

Finding the Fourth Proportional to 60,824.21, 91,238.85 and 20,870.66

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Solution

The fourth proportional to 60,824.21, 91,238.85 and 20,870.66 is: 31,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,824.21 : 91,238.85 = 20,870.66 : x
  2. Step 2: Convert to fraction form
    60,824.21/91,238.85 = 20,870.66/x
  3. Step 3: Cross multiply
    60,824.21x = 91,238.85 × 20,870.66
  4. Step 4: Simplify right side
    60,824.21x = 1,904,214,938.88
  5. Step 5: Solve for x
    x = 1,904,214,938.88/60,824.21
  6. Step 6: Final answer
    x = 31,306.86

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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.