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Finding the Fourth Proportional to 101,379.57, 152,091.09 and 30,307.77

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Solution

The fourth proportional to 101,379.57, 152,091.09 and 30,307.77 is: 45,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,379.57 : 152,091.09 = 30,307.77 : x
  2. Step 2: Convert to fraction form
    101,379.57/152,091.09 = 30,307.77/x
  3. Step 3: Cross multiply
    101,379.57x = 152,091.09 × 30,307.77
  4. Step 4: Simplify right side
    101,379.57x = 4,609,541,774.77
  5. Step 5: Solve for x
    x = 4,609,541,774.77/101,379.57
  6. Step 6: Final answer
    x = 45,468.15

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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.