Home / 66,218.72-91,383.73-36,006.12

Finding the Fourth Proportional to 66,218.72, 91,383.73 and 36,006.12

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Solution

The fourth proportional to 66,218.72, 91,383.73 and 36,006.12 is: 49,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.72 : 91,383.73 = 36,006.12 : x
  2. Step 2: Convert to fraction form
    66,218.72/91,383.73 = 36,006.12/x
  3. Step 3: Cross multiply
    66,218.72x = 91,383.73 × 36,006.12
  4. Step 4: Simplify right side
    66,218.72x = 3,290,373,458.41
  5. Step 5: Solve for x
    x = 3,290,373,458.41/66,218.72
  6. Step 6: Final answer
    x = 49,689.48

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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.