Home / 60,161.12-90,184.92-20,690.64

Finding the Fourth Proportional to 60,161.12, 90,184.92 and 20,690.64

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Solution

The fourth proportional to 60,161.12, 90,184.92 and 20,690.64 is: 31,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,161.12 : 90,184.92 = 20,690.64 : x
  2. Step 2: Convert to fraction form
    60,161.12/90,184.92 = 20,690.64/x
  3. Step 3: Cross multiply
    60,161.12x = 90,184.92 × 20,690.64
  4. Step 4: Simplify right side
    60,161.12x = 1,865,983,713.15
  5. Step 5: Solve for x
    x = 1,865,983,713.15/60,161.12
  6. Step 6: Final answer
    x = 31,016.44

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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.