Home / 61,890.75-92,821.18-28,578.79

Finding the Fourth Proportional to 61,890.75, 92,821.18 and 28,578.79

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Solution

The fourth proportional to 61,890.75, 92,821.18 and 28,578.79 is: 42,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.75 : 92,821.18 = 28,578.79 : x
  2. Step 2: Convert to fraction form
    61,890.75/92,821.18 = 28,578.79/x
  3. Step 3: Cross multiply
    61,890.75x = 92,821.18 × 28,578.79
  4. Step 4: Simplify right side
    61,890.75x = 2,652,717,010.77
  5. Step 5: Solve for x
    x = 2,652,717,010.77/61,890.75
  6. Step 6: Final answer
    x = 42,861.28

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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.