Home / 71,855.90-99,162.88-40,025.32

Finding the Fourth Proportional to 71,855.90, 99,162.88 and 40,025.32

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Solution

The fourth proportional to 71,855.90, 99,162.88 and 40,025.32 is: 55,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,855.90 : 99,162.88 = 40,025.32 : x
  2. Step 2: Convert to fraction form
    71,855.90/99,162.88 = 40,025.32/x
  3. Step 3: Cross multiply
    71,855.90x = 99,162.88 × 40,025.32
  4. Step 4: Simplify right side
    71,855.90x = 3,969,026,004.12
  5. Step 5: Solve for x
    x = 3,969,026,004.12/71,855.90
  6. Step 6: Final answer
    x = 55,235.91

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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.