Home / 51,425.79-70,960.50-28,763.61

Finding the Fourth Proportional to 51,425.79, 70,960.50 and 28,763.61

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Solution

The fourth proportional to 51,425.79, 70,960.50 and 28,763.61 is: 39,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,425.79 : 70,960.50 = 28,763.61 : x
  2. Step 2: Convert to fraction form
    51,425.79/70,960.50 = 28,763.61/x
  3. Step 3: Cross multiply
    51,425.79x = 70,960.50 × 28,763.61
  4. Step 4: Simplify right side
    51,425.79x = 2,041,080,147.41
  5. Step 5: Solve for x
    x = 2,041,080,147.41/51,425.79
  6. Step 6: Final answer
    x = 39,689.82

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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.