Home / 66,070.28-91,177.04-35,855.60

Finding the Fourth Proportional to 66,070.28, 91,177.04 and 35,855.60

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Solution

The fourth proportional to 66,070.28, 91,177.04 and 35,855.60 is: 49,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.28 : 91,177.04 = 35,855.60 : x
  2. Step 2: Convert to fraction form
    66,070.28/91,177.04 = 35,855.60/x
  3. Step 3: Cross multiply
    66,070.28x = 91,177.04 × 35,855.60
  4. Step 4: Simplify right side
    66,070.28x = 3,269,207,793.01
  5. Step 5: Solve for x
    x = 3,269,207,793.01/66,070.28
  6. Step 6: Final answer
    x = 49,480.77

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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.