Home / 66,909.39-100,364.02-20,162.26

Finding the Fourth Proportional to 66,909.39, 100,364.02 and 20,162.26

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Solution

The fourth proportional to 66,909.39, 100,364.02 and 20,162.26 is: 30,243.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.39 : 100,364.02 = 20,162.26 : x
  2. Step 2: Convert to fraction form
    66,909.39/100,364.02 = 20,162.26/x
  3. Step 3: Cross multiply
    66,909.39x = 100,364.02 × 20,162.26
  4. Step 4: Simplify right side
    66,909.39x = 2,023,565,465.89
  5. Step 5: Solve for x
    x = 2,023,565,465.89/66,909.39
  6. Step 6: Final answer
    x = 30,243.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.