Home / 51,146.87-76,760.80-21,585.11

Finding the Fourth Proportional to 51,146.87, 76,760.80 and 21,585.11

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Solution

The fourth proportional to 51,146.87, 76,760.80 and 21,585.11 is: 32,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,146.87 : 76,760.80 = 21,585.11 : x
  2. Step 2: Convert to fraction form
    51,146.87/76,760.80 = 21,585.11/x
  3. Step 3: Cross multiply
    51,146.87x = 76,760.80 × 21,585.11
  4. Step 4: Simplify right side
    51,146.87x = 1,656,889,873.92
  5. Step 5: Solve for x
    x = 1,656,889,873.92/51,146.87
  6. Step 6: Final answer
    x = 32,394.75

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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.