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Finding the Fourth Proportional to 52,230.98, 78,292.84 and 20,628.23

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Solution

The fourth proportional to 52,230.98, 78,292.84 and 20,628.23 is: 30,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,230.98 : 78,292.84 = 20,628.23 : x
  2. Step 2: Convert to fraction form
    52,230.98/78,292.84 = 20,628.23/x
  3. Step 3: Cross multiply
    52,230.98x = 78,292.84 × 20,628.23
  4. Step 4: Simplify right side
    52,230.98x = 1,615,042,710.87
  5. Step 5: Solve for x
    x = 1,615,042,710.87/52,230.98
  6. Step 6: Final answer
    x = 30,921.16

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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.