Home / 74,025.90-102,155.99-42,195.33

Finding the Fourth Proportional to 74,025.90, 102,155.99 and 42,195.33

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Solution

The fourth proportional to 74,025.90, 102,155.99 and 42,195.33 is: 58,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,025.90 : 102,155.99 = 42,195.33 : x
  2. Step 2: Convert to fraction form
    74,025.90/102,155.99 = 42,195.33/x
  3. Step 3: Cross multiply
    74,025.90x = 102,155.99 × 42,195.33
  4. Step 4: Simplify right side
    74,025.90x = 4,310,505,498.55
  5. Step 5: Solve for x
    x = 4,310,505,498.55/74,025.90
  6. Step 6: Final answer
    x = 58,229.69

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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.