Home / 66,362.30-91,578.38-38,066.12

Finding the Fourth Proportional to 66,362.30, 91,578.38 and 38,066.12

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Solution

The fourth proportional to 66,362.30, 91,578.38 and 38,066.12 is: 52,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362.30 : 91,578.38 = 38,066.12 : x
  2. Step 2: Convert to fraction form
    66,362.30/91,578.38 = 38,066.12/x
  3. Step 3: Cross multiply
    66,362.30x = 91,578.38 × 38,066.12
  4. Step 4: Simplify right side
    66,362.30x = 3,486,033,602.49
  5. Step 5: Solve for x
    x = 3,486,033,602.49/66,362.30
  6. Step 6: Final answer
    x = 52,530.33

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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.