Home / 49,208.19-67,904.80-27,987

Finding the Fourth Proportional to 49,208.19, 67,904.80 and 27,987

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Solution

The fourth proportional to 49,208.19, 67,904.80 and 27,987 is: 38,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,208.19 : 67,904.80 = 27,987 : x
  2. Step 2: Convert to fraction form
    49,208.19/67,904.80 = 27,987/x
  3. Step 3: Cross multiply
    49,208.19x = 67,904.80 × 27,987
  4. Step 4: Simplify right side
    49,208.19x = 1,900,451,637.60
  5. Step 5: Solve for x
    x = 1,900,451,637.60/49,208.19
  6. Step 6: Final answer
    x = 38,620.64

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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.