Home / 66,519.32-91,797.42-39,677.08

Finding the Fourth Proportional to 66,519.32, 91,797.42 and 39,677.08

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Solution

The fourth proportional to 66,519.32, 91,797.42 and 39,677.08 is: 54,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,519.32 : 91,797.42 = 39,677.08 : x
  2. Step 2: Convert to fraction form
    66,519.32/91,797.42 = 39,677.08/x
  3. Step 3: Cross multiply
    66,519.32x = 91,797.42 × 39,677.08
  4. Step 4: Simplify right side
    66,519.32x = 3,642,253,577.13
  5. Step 5: Solve for x
    x = 3,642,253,577.13/66,519.32
  6. Step 6: Final answer
    x = 54,754.82

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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.