Home / 51,328.74-76,993.11-19,313.83

Finding the Fourth Proportional to 51,328.74, 76,993.11 and 19,313.83

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Solution

The fourth proportional to 51,328.74, 76,993.11 and 19,313.83 is: 28,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,328.74 : 76,993.11 = 19,313.83 : x
  2. Step 2: Convert to fraction form
    51,328.74/76,993.11 = 19,313.83/x
  3. Step 3: Cross multiply
    51,328.74x = 76,993.11 × 19,313.83
  4. Step 4: Simplify right side
    51,328.74x = 1,487,031,933.95
  5. Step 5: Solve for x
    x = 1,487,031,933.95/51,328.74
  6. Step 6: Final answer
    x = 28,970.75

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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.