Home / 68,278.22-102,417.33-21,534.74

Finding the Fourth Proportional to 68,278.22, 102,417.33 and 21,534.74

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Solution

The fourth proportional to 68,278.22, 102,417.33 and 21,534.74 is: 32,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,278.22 : 102,417.33 = 21,534.74 : x
  2. Step 2: Convert to fraction form
    68,278.22/102,417.33 = 21,534.74/x
  3. Step 3: Cross multiply
    68,278.22x = 102,417.33 × 21,534.74
  4. Step 4: Simplify right side
    68,278.22x = 2,205,530,909.84
  5. Step 5: Solve for x
    x = 2,205,530,909.84/68,278.22
  6. Step 6: Final answer
    x = 32,302.11

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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.