Home / 66,209.63-91,382.54-39,346.97

Finding the Fourth Proportional to 66,209.63, 91,382.54 and 39,346.97

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Solution

The fourth proportional to 66,209.63, 91,382.54 and 39,346.97 is: 54,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.63 : 91,382.54 = 39,346.97 : x
  2. Step 2: Convert to fraction form
    66,209.63/91,382.54 = 39,346.97/x
  3. Step 3: Cross multiply
    66,209.63x = 91,382.54 × 39,346.97
  4. Step 4: Simplify right side
    66,209.63x = 3,595,625,406.26
  5. Step 5: Solve for x
    x = 3,595,625,406.26/66,209.63
  6. Step 6: Final answer
    x = 54,306.69

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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.