Home / 42,753.12-64,142.64-30,297.24

Finding the Fourth Proportional to 42,753.12, 64,142.64 and 30,297.24

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Solution

The fourth proportional to 42,753.12, 64,142.64 and 30,297.24 is: 45,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,753.12 : 64,142.64 = 30,297.24 : x
  2. Step 2: Convert to fraction form
    42,753.12/64,142.64 = 30,297.24/x
  3. Step 3: Cross multiply
    42,753.12x = 64,142.64 × 30,297.24
  4. Step 4: Simplify right side
    42,753.12x = 1,943,344,958.31
  5. Step 5: Solve for x
    x = 1,943,344,958.31/42,753.12
  6. Step 6: Final answer
    x = 45,455.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.