Home / 68,182.74-102,290.51-21,435.58

Finding the Fourth Proportional to 68,182.74, 102,290.51 and 21,435.58

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Solution

The fourth proportional to 68,182.74, 102,290.51 and 21,435.58 is: 32,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,182.74 : 102,290.51 = 21,435.58 : x
  2. Step 2: Convert to fraction form
    68,182.74/102,290.51 = 21,435.58/x
  3. Step 3: Cross multiply
    68,182.74x = 102,290.51 × 21,435.58
  4. Step 4: Simplify right side
    68,182.74x = 2,192,656,410.35
  5. Step 5: Solve for x
    x = 2,192,656,410.35/68,182.74
  6. Step 6: Final answer
    x = 32,158.53

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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.