Home / 51,480.76-71,040.15-28,815.94

Finding the Fourth Proportional to 51,480.76, 71,040.15 and 28,815.94

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Solution

The fourth proportional to 51,480.76, 71,040.15 and 28,815.94 is: 39,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,480.76 : 71,040.15 = 28,815.94 : x
  2. Step 2: Convert to fraction form
    51,480.76/71,040.15 = 28,815.94/x
  3. Step 3: Cross multiply
    51,480.76x = 71,040.15 × 28,815.94
  4. Step 4: Simplify right side
    51,480.76x = 2,047,088,344.79
  5. Step 5: Solve for x
    x = 2,047,088,344.79/51,480.76
  6. Step 6: Final answer
    x = 39,764.15

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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.