Home / 66,513.42-91,788.48-38,219.04

Finding the Fourth Proportional to 66,513.42, 91,788.48 and 38,219.04

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Solution

The fourth proportional to 66,513.42, 91,788.48 and 38,219.04 is: 52,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.42 : 91,788.48 = 38,219.04 : x
  2. Step 2: Convert to fraction form
    66,513.42/91,788.48 = 38,219.04/x
  3. Step 3: Cross multiply
    66,513.42x = 91,788.48 × 38,219.04
  4. Step 4: Simplify right side
    66,513.42x = 3,508,067,588.66
  5. Step 5: Solve for x
    x = 3,508,067,588.66/66,513.42
  6. Step 6: Final answer
    x = 52,742.25

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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.