Home / 52,436.16-78,660.72-19,171.89

Finding the Fourth Proportional to 52,436.16, 78,660.72 and 19,171.89

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Solution

The fourth proportional to 52,436.16, 78,660.72 and 19,171.89 is: 28,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,436.16 : 78,660.72 = 19,171.89 : x
  2. Step 2: Convert to fraction form
    52,436.16/78,660.72 = 19,171.89/x
  3. Step 3: Cross multiply
    52,436.16x = 78,660.72 × 19,171.89
  4. Step 4: Simplify right side
    52,436.16x = 1,508,074,671.16
  5. Step 5: Solve for x
    x = 1,508,074,671.16/52,436.16
  6. Step 6: Final answer
    x = 28,760.20

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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.