Home / 61,780.57-92,677.34-20,230.81

Finding the Fourth Proportional to 61,780.57, 92,677.34 and 20,230.81

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Solution

The fourth proportional to 61,780.57, 92,677.34 and 20,230.81 is: 30,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,780.57 : 92,677.34 = 20,230.81 : x
  2. Step 2: Convert to fraction form
    61,780.57/92,677.34 = 20,230.81/x
  3. Step 3: Cross multiply
    61,780.57x = 92,677.34 × 20,230.81
  4. Step 4: Simplify right side
    61,780.57x = 1,874,937,555.69
  5. Step 5: Solve for x
    x = 1,874,937,555.69/61,780.57
  6. Step 6: Final answer
    x = 30,348.34

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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.