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Finding the Fourth Proportional to 85,036.75, 127,583.82 and 37,645.30

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Solution

The fourth proportional to 85,036.75, 127,583.82 and 37,645.30 is: 56,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,036.75 : 127,583.82 = 37,645.30 : x
  2. Step 2: Convert to fraction form
    85,036.75/127,583.82 = 37,645.30/x
  3. Step 3: Cross multiply
    85,036.75x = 127,583.82 × 37,645.30
  4. Step 4: Simplify right side
    85,036.75x = 4,802,930,860.09
  5. Step 5: Solve for x
    x = 4,802,930,860.09/85,036.75
  6. Step 6: Final answer
    x = 56,480.65

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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.