Home / 57,120.92-78,851.58-42,977.24

Finding the Fourth Proportional to 57,120.92, 78,851.58 and 42,977.24

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Solution

The fourth proportional to 57,120.92, 78,851.58 and 42,977.24 is: 59,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.92 : 78,851.58 = 42,977.24 : x
  2. Step 2: Convert to fraction form
    57,120.92/78,851.58 = 42,977.24/x
  3. Step 3: Cross multiply
    57,120.92x = 78,851.58 × 42,977.24
  4. Step 4: Simplify right side
    57,120.92x = 3,388,823,278.04
  5. Step 5: Solve for x
    x = 3,388,823,278.04/57,120.92
  6. Step 6: Final answer
    x = 59,327.18

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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.