Home / 51,981.24-77,976.72-16,911.48

Finding the Fourth Proportional to 51,981.24, 77,976.72 and 16,911.48

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Solution

The fourth proportional to 51,981.24, 77,976.72 and 16,911.48 is: 25,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.24 : 77,976.72 = 16,911.48 : x
  2. Step 2: Convert to fraction form
    51,981.24/77,976.72 = 16,911.48/x
  3. Step 3: Cross multiply
    51,981.24x = 77,976.72 × 16,911.48
  4. Step 4: Simplify right side
    51,981.24x = 1,318,701,740.75
  5. Step 5: Solve for x
    x = 1,318,701,740.75/51,981.24
  6. Step 6: Final answer
    x = 25,368.80

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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.