Home / 66,419.19-91,656.66-36,205.10

Finding the Fourth Proportional to 66,419.19, 91,656.66 and 36,205.10

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Solution

The fourth proportional to 66,419.19, 91,656.66 and 36,205.10 is: 49,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,419.19 : 91,656.66 = 36,205.10 : x
  2. Step 2: Convert to fraction form
    66,419.19/91,656.66 = 36,205.10/x
  3. Step 3: Cross multiply
    66,419.19x = 91,656.66 × 36,205.10
  4. Step 4: Simplify right side
    66,419.19x = 3,318,438,590.84
  5. Step 5: Solve for x
    x = 3,318,438,590.84/66,419.19
  6. Step 6: Final answer
    x = 49,962.05

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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.