Home / 51,211.85-70,672.10-28,550.61

Finding the Fourth Proportional to 51,211.85, 70,672.10 and 28,550.61

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Solution

The fourth proportional to 51,211.85, 70,672.10 and 28,550.61 is: 39,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,211.85 : 70,672.10 = 28,550.61 : x
  2. Step 2: Convert to fraction form
    51,211.85/70,672.10 = 28,550.61/x
  3. Step 3: Cross multiply
    51,211.85x = 70,672.10 × 28,550.61
  4. Step 4: Simplify right side
    51,211.85x = 2,017,731,422.23
  5. Step 5: Solve for x
    x = 2,017,731,422.23/51,211.85
  6. Step 6: Final answer
    x = 39,399.70

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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.