Home / 52,078.19-78,117.39-18,821.73

Finding the Fourth Proportional to 52,078.19, 78,117.39 and 18,821.73

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Solution

The fourth proportional to 52,078.19, 78,117.39 and 18,821.73 is: 28,232.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,078.19 : 78,117.39 = 18,821.73 : x
  2. Step 2: Convert to fraction form
    52,078.19/78,117.39 = 18,821.73/x
  3. Step 3: Cross multiply
    52,078.19x = 78,117.39 × 18,821.73
  4. Step 4: Simplify right side
    52,078.19x = 1,470,304,422.88
  5. Step 5: Solve for x
    x = 1,470,304,422.88/52,078.19
  6. Step 6: Final answer
    x = 28,232.64

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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.