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Finding the Fourth Proportional to 67,303.96, 100,952.28 and 20,553.19

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Solution

The fourth proportional to 67,303.96, 100,952.28 and 20,553.19 is: 30,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,303.96 : 100,952.28 = 20,553.19 : x
  2. Step 2: Convert to fraction form
    67,303.96/100,952.28 = 20,553.19/x
  3. Step 3: Cross multiply
    67,303.96x = 100,952.28 × 20,553.19
  4. Step 4: Simplify right side
    67,303.96x = 2,074,891,139.39
  5. Step 5: Solve for x
    x = 2,074,891,139.39/67,303.96
  6. Step 6: Final answer
    x = 30,828.66

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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.