Home / 51,478.17-71,035.95-28,811.97

Finding the Fourth Proportional to 51,478.17, 71,035.95 and 28,811.97

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Solution

The fourth proportional to 51,478.17, 71,035.95 and 28,811.97 is: 39,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.17 : 71,035.95 = 28,811.97 : x
  2. Step 2: Convert to fraction form
    51,478.17/71,035.95 = 28,811.97/x
  3. Step 3: Cross multiply
    51,478.17x = 71,035.95 × 28,811.97
  4. Step 4: Simplify right side
    51,478.17x = 2,046,685,768.37
  5. Step 5: Solve for x
    x = 2,046,685,768.37/51,478.17
  6. Step 6: Final answer
    x = 39,758.33

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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.