Home / 84,317.22-126,480.78-31,727.16

Finding the Fourth Proportional to 84,317.22, 126,480.78 and 31,727.16

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Solution

The fourth proportional to 84,317.22, 126,480.78 and 31,727.16 is: 47,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,317.22 : 126,480.78 = 31,727.16 : x
  2. Step 2: Convert to fraction form
    84,317.22/126,480.78 = 31,727.16/x
  3. Step 3: Cross multiply
    84,317.22x = 126,480.78 × 31,727.16
  4. Step 4: Simplify right side
    84,317.22x = 4,012,875,943.98
  5. Step 5: Solve for x
    x = 4,012,875,943.98/84,317.22
  6. Step 6: Final answer
    x = 47,592.60

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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.