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Finding the Fourth Proportional to 63,653.97, 87,769.99 and 40,652.80

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Solution

The fourth proportional to 63,653.97, 87,769.99 and 40,652.80 is: 56,054.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,653.97 : 87,769.99 = 40,652.80 : x
  2. Step 2: Convert to fraction form
    63,653.97/87,769.99 = 40,652.80/x
  3. Step 3: Cross multiply
    63,653.97x = 87,769.99 × 40,652.80
  4. Step 4: Simplify right side
    63,653.97x = 3,568,095,849.47
  5. Step 5: Solve for x
    x = 3,568,095,849.47/63,653.97
  6. Step 6: Final answer
    x = 56,054.57

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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.