Home / 83,812.32-115,655.85-47,994.12

Finding the Fourth Proportional to 83,812.32, 115,655.85 and 47,994.12

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Solution

The fourth proportional to 83,812.32, 115,655.85 and 47,994.12 is: 66,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,812.32 : 115,655.85 = 47,994.12 : x
  2. Step 2: Convert to fraction form
    83,812.32/115,655.85 = 47,994.12/x
  3. Step 3: Cross multiply
    83,812.32x = 115,655.85 × 47,994.12
  4. Step 4: Simplify right side
    83,812.32x = 5,550,800,743.60
  5. Step 5: Solve for x
    x = 5,550,800,743.60/83,812.32
  6. Step 6: Final answer
    x = 66,228.94

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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.