Home / 66,091.10-91,205.79-35,876.40

Finding the Fourth Proportional to 66,091.10, 91,205.79 and 35,876.40

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Solution

The fourth proportional to 66,091.10, 91,205.79 and 35,876.40 is: 49,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,091.10 : 91,205.79 = 35,876.40 : x
  2. Step 2: Convert to fraction form
    66,091.10/91,205.79 = 35,876.40/x
  3. Step 3: Cross multiply
    66,091.10x = 91,205.79 × 35,876.40
  4. Step 4: Simplify right side
    66,091.10x = 3,272,135,404.36
  5. Step 5: Solve for x
    x = 3,272,135,404.36/66,091.10
  6. Step 6: Final answer
    x = 49,509.47

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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.