Home / 88,215.96-121,736.55-47,930.34

Finding the Fourth Proportional to 88,215.96, 121,736.55 and 47,930.34

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Solution

The fourth proportional to 88,215.96, 121,736.55 and 47,930.34 is: 66,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,215.96 : 121,736.55 = 47,930.34 : x
  2. Step 2: Convert to fraction form
    88,215.96/121,736.55 = 47,930.34/x
  3. Step 3: Cross multiply
    88,215.96x = 121,736.55 × 47,930.34
  4. Step 4: Simplify right side
    88,215.96x = 5,834,874,231.93
  5. Step 5: Solve for x
    x = 5,834,874,231.93/88,215.96
  6. Step 6: Final answer
    x = 66,143.07

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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.