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Finding the Fourth Proportional to 86,391.82, 119,221.90 and 48,150.30

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Solution

The fourth proportional to 86,391.82, 119,221.90 and 48,150.30 is: 66,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,391.82 : 119,221.90 = 48,150.30 : x
  2. Step 2: Convert to fraction form
    86,391.82/119,221.90 = 48,150.30/x
  3. Step 3: Cross multiply
    86,391.82x = 119,221.90 × 48,150.30
  4. Step 4: Simplify right side
    86,391.82x = 5,740,570,251.57
  5. Step 5: Solve for x
    x = 5,740,570,251.57/86,391.82
  6. Step 6: Final answer
    x = 66,448.08

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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.