Home / 61,531.40-92,224.20-45,930.80

Finding the Fourth Proportional to 61,531.40, 92,224.20 and 45,930.80

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Solution

The fourth proportional to 61,531.40, 92,224.20 and 45,930.80 is: 68,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,531.40 : 92,224.20 = 45,930.80 : x
  2. Step 2: Convert to fraction form
    61,531.40/92,224.20 = 45,930.80/x
  3. Step 3: Cross multiply
    61,531.40x = 92,224.20 × 45,930.80
  4. Step 4: Simplify right side
    61,531.40x = 4,235,931,285.36
  5. Step 5: Solve for x
    x = 4,235,931,285.36/61,531.40
  6. Step 6: Final answer
    x = 68,841.78

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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.