Home / 51,722.28-71,370-30,493.80

Finding the Fourth Proportional to 51,722.28, 71,370 and 30,493.80

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Solution

The fourth proportional to 51,722.28, 71,370 and 30,493.80 is: 42,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,722.28 : 71,370 = 30,493.80 : x
  2. Step 2: Convert to fraction form
    51,722.28/71,370 = 30,493.80/x
  3. Step 3: Cross multiply
    51,722.28x = 71,370 × 30,493.80
  4. Step 4: Simplify right side
    51,722.28x = 2,176,342,506
  5. Step 5: Solve for x
    x = 2,176,342,506/51,722.28
  6. Step 6: Final answer
    x = 42,077.47

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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.