Home / 69,891.42-96,442.83-40,820.70

Finding the Fourth Proportional to 69,891.42, 96,442.83 and 40,820.70

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Solution

The fourth proportional to 69,891.42, 96,442.83 and 40,820.70 is: 56,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,891.42 : 96,442.83 = 40,820.70 : x
  2. Step 2: Convert to fraction form
    69,891.42/96,442.83 = 40,820.70/x
  3. Step 3: Cross multiply
    69,891.42x = 96,442.83 × 40,820.70
  4. Step 4: Simplify right side
    69,891.42x = 3,936,863,830.58
  5. Step 5: Solve for x
    x = 3,936,863,830.58/69,891.42
  6. Step 6: Final answer
    x = 56,328.29

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1.5x scale

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.