Home / 51,330.74-76,996.11-19,315.83

Finding the Fourth Proportional to 51,330.74, 76,996.11 and 19,315.83

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Solution

The fourth proportional to 51,330.74, 76,996.11 and 19,315.83 is: 28,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,330.74 : 76,996.11 = 19,315.83 : x
  2. Step 2: Convert to fraction form
    51,330.74/76,996.11 = 19,315.83/x
  3. Step 3: Cross multiply
    51,330.74x = 76,996.11 × 19,315.83
  4. Step 4: Simplify right side
    51,330.74x = 1,487,243,771.42
  5. Step 5: Solve for x
    x = 1,487,243,771.42/51,330.74
  6. Step 6: Final answer
    x = 28,973.75

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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.