Home / 66,165.52-91,272.46-40,662.68

Finding the Fourth Proportional to 66,165.52, 91,272.46 and 40,662.68

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Solution

The fourth proportional to 66,165.52, 91,272.46 and 40,662.68 is: 56,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,165.52 : 91,272.46 = 40,662.68 : x
  2. Step 2: Convert to fraction form
    66,165.52/91,272.46 = 40,662.68/x
  3. Step 3: Cross multiply
    66,165.52x = 91,272.46 × 40,662.68
  4. Step 4: Simplify right side
    66,165.52x = 3,711,382,833.79
  5. Step 5: Solve for x
    x = 3,711,382,833.79/66,165.52
  6. Step 6: Final answer
    x = 56,092.40

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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.