Home / 51,823.60-77,716.20-16,764.40

Finding the Fourth Proportional to 51,823.60, 77,716.20 and 16,764.40

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Solution

The fourth proportional to 51,823.60, 77,716.20 and 16,764.40 is: 25,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,823.60 : 77,716.20 = 16,764.40 : x
  2. Step 2: Convert to fraction form
    51,823.60/77,716.20 = 16,764.40/x
  3. Step 3: Cross multiply
    51,823.60x = 77,716.20 × 16,764.40
  4. Step 4: Simplify right side
    51,823.60x = 1,302,865,463.28
  5. Step 5: Solve for x
    x = 1,302,865,463.28/51,823.60
  6. Step 6: Final answer
    x = 25,140.39

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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.