Home / 91,717.82-126,512.31-66,261.58

Finding the Fourth Proportional to 91,717.82, 126,512.31 and 66,261.58

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Solution

The fourth proportional to 91,717.82, 126,512.31 and 66,261.58 is: 91,398.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,717.82 : 126,512.31 = 66,261.58 : x
  2. Step 2: Convert to fraction form
    91,717.82/126,512.31 = 66,261.58/x
  3. Step 3: Cross multiply
    91,717.82x = 126,512.31 × 66,261.58
  4. Step 4: Simplify right side
    91,717.82x = 8,382,905,482.25
  5. Step 5: Solve for x
    x = 8,382,905,482.25/91,717.82
  6. Step 6: Final answer
    x = 91,398.88

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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.