Home / 51,319.11-70,819.71-28,658.49

Finding the Fourth Proportional to 51,319.11, 70,819.71 and 28,658.49

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Solution

The fourth proportional to 51,319.11, 70,819.71 and 28,658.49 is: 39,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,319.11 : 70,819.71 = 28,658.49 : x
  2. Step 2: Convert to fraction form
    51,319.11/70,819.71 = 28,658.49/x
  3. Step 3: Cross multiply
    51,319.11x = 70,819.71 × 28,658.49
  4. Step 4: Simplify right side
    51,319.11x = 2,029,585,950.84
  5. Step 5: Solve for x
    x = 2,029,585,950.84/51,319.11
  6. Step 6: Final answer
    x = 39,548.35

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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.