Home / 51,379.08-77,072.40-21,793.56

Finding the Fourth Proportional to 51,379.08, 77,072.40 and 21,793.56

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Solution

The fourth proportional to 51,379.08, 77,072.40 and 21,793.56 is: 32,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,379.08 : 77,072.40 = 21,793.56 : x
  2. Step 2: Convert to fraction form
    51,379.08/77,072.40 = 21,793.56/x
  3. Step 3: Cross multiply
    51,379.08x = 77,072.40 × 21,793.56
  4. Step 4: Simplify right side
    51,379.08x = 1,679,681,973.74
  5. Step 5: Solve for x
    x = 1,679,681,973.74/51,379.08
  6. Step 6: Final answer
    x = 32,691.94

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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.