Home / 51,415.94-70,937.85-28,751.87

Finding the Fourth Proportional to 51,415.94, 70,937.85 and 28,751.87

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Solution

The fourth proportional to 51,415.94, 70,937.85 and 28,751.87 is: 39,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.94 : 70,937.85 = 28,751.87 : x
  2. Step 2: Convert to fraction form
    51,415.94/70,937.85 = 28,751.87/x
  3. Step 3: Cross multiply
    51,415.94x = 70,937.85 × 28,751.87
  4. Step 4: Simplify right side
    51,415.94x = 2,039,595,841.28
  5. Step 5: Solve for x
    x = 2,039,595,841.28/51,415.94
  6. Step 6: Final answer
    x = 39,668.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.