Home / 67,131.46-100,690.68-20,384.74

Finding the Fourth Proportional to 67,131.46, 100,690.68 and 20,384.74

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Solution

The fourth proportional to 67,131.46, 100,690.68 and 20,384.74 is: 30,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,131.46 : 100,690.68 = 20,384.74 : x
  2. Step 2: Convert to fraction form
    67,131.46/100,690.68 = 20,384.74/x
  3. Step 3: Cross multiply
    67,131.46x = 100,690.68 × 20,384.74
  4. Step 4: Simplify right side
    67,131.46x = 2,052,553,332.22
  5. Step 5: Solve for x
    x = 2,052,553,332.22/67,131.46
  6. Step 6: Final answer
    x = 30,575.13

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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.