Home / 51,145.59-76,707.45-21,555.48

Finding the Fourth Proportional to 51,145.59, 76,707.45 and 21,555.48

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Solution

The fourth proportional to 51,145.59, 76,707.45 and 21,555.48 is: 32,328.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,145.59 : 76,707.45 = 21,555.48 : x
  2. Step 2: Convert to fraction form
    51,145.59/76,707.45 = 21,555.48/x
  3. Step 3: Cross multiply
    51,145.59x = 76,707.45 × 21,555.48
  4. Step 4: Simplify right side
    51,145.59x = 1,653,465,904.33
  5. Step 5: Solve for x
    x = 1,653,465,904.33/51,145.59
  6. Step 6: Final answer
    x = 32,328.61

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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.