Home / 80,128.49-110,564.10-44,311.50

Finding the Fourth Proportional to 80,128.49, 110,564.10 and 44,311.50

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Solution

The fourth proportional to 80,128.49, 110,564.10 and 44,311.50 is: 61,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,128.49 : 110,564.10 = 44,311.50 : x
  2. Step 2: Convert to fraction form
    80,128.49/110,564.10 = 44,311.50/x
  3. Step 3: Cross multiply
    80,128.49x = 110,564.10 × 44,311.50
  4. Step 4: Simplify right side
    80,128.49x = 4,899,261,117.15
  5. Step 5: Solve for x
    x = 4,899,261,117.15/80,128.49
  6. Step 6: Final answer
    x = 61,142.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.