Home / 71,855.10-99,157.37-40,023.32

Finding the Fourth Proportional to 71,855.10, 99,157.37 and 40,023.32

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Solution

The fourth proportional to 71,855.10, 99,157.37 and 40,023.32 is: 55,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,855.10 : 99,157.37 = 40,023.32 : x
  2. Step 2: Convert to fraction form
    71,855.10/99,157.37 = 40,023.32/x
  3. Step 3: Cross multiply
    71,855.10x = 99,157.37 × 40,023.32
  4. Step 4: Simplify right side
    71,855.10x = 3,968,606,453.96
  5. Step 5: Solve for x
    x = 3,968,606,453.96/71,855.10
  6. Step 6: Final answer
    x = 55,230.69

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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.