Home / 86,394.37-119,209.78-48,145.54

Finding the Fourth Proportional to 86,394.37, 119,209.78 and 48,145.54

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Solution

The fourth proportional to 86,394.37, 119,209.78 and 48,145.54 is: 66,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,394.37 : 119,209.78 = 48,145.54 : x
  2. Step 2: Convert to fraction form
    86,394.37/119,209.78 = 48,145.54/x
  3. Step 3: Cross multiply
    86,394.37x = 119,209.78 × 48,145.54
  4. Step 4: Simplify right side
    86,394.37x = 5,739,418,635.33
  5. Step 5: Solve for x
    x = 5,739,418,635.33/86,394.37
  6. Step 6: Final answer
    x = 66,432.79

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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.