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Finding the Fourth Proportional to 66,144.42, 91,276.67 and 35,929.13

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Solution

The fourth proportional to 66,144.42, 91,276.67 and 35,929.13 is: 49,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144.42 : 91,276.67 = 35,929.13 : x
  2. Step 2: Convert to fraction form
    66,144.42/91,276.67 = 35,929.13/x
  3. Step 3: Cross multiply
    66,144.42x = 91,276.67 × 35,929.13
  4. Step 4: Simplify right side
    66,144.42x = 3,279,490,975.84
  5. Step 5: Solve for x
    x = 3,279,490,975.84/66,144.42
  6. Step 6: Final answer
    x = 49,580.77

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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.