Home / 51,423.64-70,968.34-28,769.92

Finding the Fourth Proportional to 51,423.64, 70,968.34 and 28,769.92

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Solution

The fourth proportional to 51,423.64, 70,968.34 and 28,769.92 is: 39,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,423.64 : 70,968.34 = 28,769.92 : x
  2. Step 2: Convert to fraction form
    51,423.64/70,968.34 = 28,769.92/x
  3. Step 3: Cross multiply
    51,423.64x = 70,968.34 × 28,769.92
  4. Step 4: Simplify right side
    51,423.64x = 2,041,753,161.04
  5. Step 5: Solve for x
    x = 2,041,753,161.04/51,423.64
  6. Step 6: Final answer
    x = 39,704.56

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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.