Home / 41,685.12-62,473.44-31,788

Finding the Fourth Proportional to 41,685.12, 62,473.44 and 31,788

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Solution

The fourth proportional to 41,685.12, 62,473.44 and 31,788 is: 47,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,685.12 : 62,473.44 = 31,788 : x
  2. Step 2: Convert to fraction form
    41,685.12/62,473.44 = 31,788/x
  3. Step 3: Cross multiply
    41,685.12x = 62,473.44 × 31,788
  4. Step 4: Simplify right side
    41,685.12x = 1,985,905,710.72
  5. Step 5: Solve for x
    x = 1,985,905,710.72/41,685.12
  6. Step 6: Final answer
    x = 47,640.64

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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.