Home / 52,392.39-78,534.32-20,789.43

Finding the Fourth Proportional to 52,392.39, 78,534.32 and 20,789.43

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Solution

The fourth proportional to 52,392.39, 78,534.32 and 20,789.43 is: 31,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,392.39 : 78,534.32 = 20,789.43 : x
  2. Step 2: Convert to fraction form
    52,392.39/78,534.32 = 20,789.43/x
  3. Step 3: Cross multiply
    52,392.39x = 78,534.32 × 20,789.43
  4. Step 4: Simplify right side
    52,392.39x = 1,632,683,644.29
  5. Step 5: Solve for x
    x = 1,632,683,644.29/52,392.39
  6. Step 6: Final answer
    x = 31,162.61

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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.