Home / 85,726.42-118,274.94-55,534.88

Finding the Fourth Proportional to 85,726.42, 118,274.94 and 55,534.88

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Solution

The fourth proportional to 85,726.42, 118,274.94 and 55,534.88 is: 76,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,726.42 : 118,274.94 = 55,534.88 : x
  2. Step 2: Convert to fraction form
    85,726.42/118,274.94 = 55,534.88/x
  3. Step 3: Cross multiply
    85,726.42x = 118,274.94 × 55,534.88
  4. Step 4: Simplify right side
    85,726.42x = 6,568,384,895.59
  5. Step 5: Solve for x
    x = 6,568,384,895.59/85,726.42
  6. Step 6: Final answer
    x = 76,620.31

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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.