Home / 56,153.73-77,492.42-30,660.62

Finding the Fourth Proportional to 56,153.73, 77,492.42 and 30,660.62

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Solution

The fourth proportional to 56,153.73, 77,492.42 and 30,660.62 is: 42,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,153.73 : 77,492.42 = 30,660.62 : x
  2. Step 2: Convert to fraction form
    56,153.73/77,492.42 = 30,660.62/x
  3. Step 3: Cross multiply
    56,153.73x = 77,492.42 × 30,660.62
  4. Step 4: Simplify right side
    56,153.73x = 2,375,965,101.74
  5. Step 5: Solve for x
    x = 2,375,965,101.74/56,153.73
  6. Step 6: Final answer
    x = 42,311.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.