Home / 51,019.96-76,530.71-19,431.77

Finding the Fourth Proportional to 51,019.96, 76,530.71 and 19,431.77

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Solution

The fourth proportional to 51,019.96, 76,530.71 and 19,431.77 is: 29,147.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.96 : 76,530.71 = 19,431.77 : x
  2. Step 2: Convert to fraction form
    51,019.96/76,530.71 = 19,431.77/x
  3. Step 3: Cross multiply
    51,019.96x = 76,530.71 × 19,431.77
  4. Step 4: Simplify right side
    51,019.96x = 1,487,127,154.66
  5. Step 5: Solve for x
    x = 1,487,127,154.66/51,019.96
  6. Step 6: Final answer
    x = 29,147.95

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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.