Home / 52,415.28-78,623.19-14,979.78

Finding the Fourth Proportional to 52,415.28, 78,623.19 and 14,979.78

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Solution

The fourth proportional to 52,415.28, 78,623.19 and 14,979.78 is: 22,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.28 : 78,623.19 = 14,979.78 : x
  2. Step 2: Convert to fraction form
    52,415.28/78,623.19 = 14,979.78/x
  3. Step 3: Cross multiply
    52,415.28x = 78,623.19 × 14,979.78
  4. Step 4: Simplify right side
    52,415.28x = 1,177,758,089.10
  5. Step 5: Solve for x
    x = 1,177,758,089.10/52,415.28
  6. Step 6: Final answer
    x = 22,469.75

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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.