Home / 81,392.14-112,317.87-47,401.66

Finding the Fourth Proportional to 81,392.14, 112,317.87 and 47,401.66

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Solution

The fourth proportional to 81,392.14, 112,317.87 and 47,401.66 is: 65,412.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,392.14 : 112,317.87 = 47,401.66 : x
  2. Step 2: Convert to fraction form
    81,392.14/112,317.87 = 47,401.66/x
  3. Step 3: Cross multiply
    81,392.14x = 112,317.87 × 47,401.66
  4. Step 4: Simplify right side
    81,392.14x = 5,324,053,485.66
  5. Step 5: Solve for x
    x = 5,324,053,485.66/81,392.14
  6. Step 6: Final answer
    x = 65,412.38

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1.5x scale

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.