Home / 91,086.66-125,625.33-76,494.60

Finding the Fourth Proportional to 91,086.66, 125,625.33 and 76,494.60

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Solution

The fourth proportional to 91,086.66, 125,625.33 and 76,494.60 is: 105,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,086.66 : 125,625.33 = 76,494.60 : x
  2. Step 2: Convert to fraction form
    91,086.66/125,625.33 = 76,494.60/x
  3. Step 3: Cross multiply
    91,086.66x = 125,625.33 × 76,494.60
  4. Step 4: Simplify right side
    91,086.66x = 9,609,659,368.22
  5. Step 5: Solve for x
    x = 9,609,659,368.22/91,086.66
  6. Step 6: Final answer
    x = 105,500.18

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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.