Home / 92,318.74-138,478.01-29,143.73

Finding the Fourth Proportional to 92,318.74, 138,478.01 and 29,143.73

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Solution

The fourth proportional to 92,318.74, 138,478.01 and 29,143.73 is: 43,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,318.74 : 138,478.01 = 29,143.73 : x
  2. Step 2: Convert to fraction form
    92,318.74/138,478.01 = 29,143.73/x
  3. Step 3: Cross multiply
    92,318.74x = 138,478.01 × 29,143.73
  4. Step 4: Simplify right side
    92,318.74x = 4,035,765,934.85
  5. Step 5: Solve for x
    x = 4,035,765,934.85/92,318.74
  6. Step 6: Final answer
    x = 43,715.57

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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.