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Finding the Fourth Proportional to 66,188.75, 91,338.23 and 37,888.97

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Solution

The fourth proportional to 66,188.75, 91,338.23 and 37,888.97 is: 52,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188.75 : 91,338.23 = 37,888.97 : x
  2. Step 2: Convert to fraction form
    66,188.75/91,338.23 = 37,888.97/x
  3. Step 3: Cross multiply
    66,188.75x = 91,338.23 × 37,888.97
  4. Step 4: Simplify right side
    66,188.75x = 3,460,711,094.35
  5. Step 5: Solve for x
    x = 3,460,711,094.35/66,188.75
  6. Step 6: Final answer
    x = 52,285.49

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1.5x scale

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.