Home / 51,251.58-76,880.61-21,665.52

Finding the Fourth Proportional to 51,251.58, 76,880.61 and 21,665.52

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Solution

The fourth proportional to 51,251.58, 76,880.61 and 21,665.52 is: 32,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,251.58 : 76,880.61 = 21,665.52 : x
  2. Step 2: Convert to fraction form
    51,251.58/76,880.61 = 21,665.52/x
  3. Step 3: Cross multiply
    51,251.58x = 76,880.61 × 21,665.52
  4. Step 4: Simplify right side
    51,251.58x = 1,665,658,393.57
  5. Step 5: Solve for x
    x = 1,665,658,393.57/51,251.58
  6. Step 6: Final answer
    x = 32,499.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.