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Finding the Fourth Proportional to 66,601.48, 91,814.70 and 41,090.80

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Solution

The fourth proportional to 66,601.48, 91,814.70 and 41,090.80 is: 56,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,601.48 : 91,814.70 = 41,090.80 : x
  2. Step 2: Convert to fraction form
    66,601.48/91,814.70 = 41,090.80/x
  3. Step 3: Cross multiply
    66,601.48x = 91,814.70 × 41,090.80
  4. Step 4: Simplify right side
    66,601.48x = 3,772,739,474.76
  5. Step 5: Solve for x
    x = 3,772,739,474.76/66,601.48
  6. Step 6: Final answer
    x = 56,646.48

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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.