Home / 85,307.26-127,906.08-35,421.80

Finding the Fourth Proportional to 85,307.26, 127,906.08 and 35,421.80

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Solution

The fourth proportional to 85,307.26, 127,906.08 and 35,421.80 is: 53,109.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,307.26 : 127,906.08 = 35,421.80 : x
  2. Step 2: Convert to fraction form
    85,307.26/127,906.08 = 35,421.80/x
  3. Step 3: Cross multiply
    85,307.26x = 127,906.08 × 35,421.80
  4. Step 4: Simplify right side
    85,307.26x = 4,530,663,584.54
  5. Step 5: Solve for x
    x = 4,530,663,584.54/85,307.26
  6. Step 6: Final answer
    x = 53,109.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.