Home / 80,531.46-120,806.94-21,368.22

Finding the Fourth Proportional to 80,531.46, 120,806.94 and 21,368.22

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Solution

The fourth proportional to 80,531.46, 120,806.94 and 21,368.22 is: 32,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,531.46 : 120,806.94 = 21,368.22 : x
  2. Step 2: Convert to fraction form
    80,531.46/120,806.94 = 21,368.22/x
  3. Step 3: Cross multiply
    80,531.46x = 120,806.94 × 21,368.22
  4. Step 4: Simplify right side
    80,531.46x = 2,581,429,271.45
  5. Step 5: Solve for x
    x = 2,581,429,271.45/80,531.46
  6. Step 6: Final answer
    x = 32,054.92

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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.