Home / 51,865.20-71,574.89-30,644.42

Finding the Fourth Proportional to 51,865.20, 71,574.89 and 30,644.42

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Solution

The fourth proportional to 51,865.20, 71,574.89 and 30,644.42 is: 42,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,865.20 : 71,574.89 = 30,644.42 : x
  2. Step 2: Convert to fraction form
    51,865.20/71,574.89 = 30,644.42/x
  3. Step 3: Cross multiply
    51,865.20x = 71,574.89 × 30,644.42
  4. Step 4: Simplify right side
    51,865.20x = 2,193,370,479.52
  5. Step 5: Solve for x
    x = 2,193,370,479.52/51,865.20
  6. Step 6: Final answer
    x = 42,289.83

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1.5x scale

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.