Home / 66,600.96-91,909.40-36,386.79

Finding the Fourth Proportional to 66,600.96, 91,909.40 and 36,386.79

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Solution

The fourth proportional to 66,600.96, 91,909.40 and 36,386.79 is: 50,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,600.96 : 91,909.40 = 36,386.79 : x
  2. Step 2: Convert to fraction form
    66,600.96/91,909.40 = 36,386.79/x
  3. Step 3: Cross multiply
    66,600.96x = 91,909.40 × 36,386.79
  4. Step 4: Simplify right side
    66,600.96x = 3,344,288,000.67
  5. Step 5: Solve for x
    x = 3,344,288,000.67/66,600.96
  6. Step 6: Final answer
    x = 50,213.81

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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.