Home / 66,026.28-91,115.14-36,217.64

Finding the Fourth Proportional to 66,026.28, 91,115.14 and 36,217.64

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Solution

The fourth proportional to 66,026.28, 91,115.14 and 36,217.64 is: 49,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,026.28 : 91,115.14 = 36,217.64 : x
  2. Step 2: Convert to fraction form
    66,026.28/91,115.14 = 36,217.64/x
  3. Step 3: Cross multiply
    66,026.28x = 91,115.14 × 36,217.64
  4. Step 4: Simplify right side
    66,026.28x = 3,299,975,339.07
  5. Step 5: Solve for x
    x = 3,299,975,339.07/66,026.28
  6. Step 6: Final answer
    x = 49,979.73

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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.