Home / 57,921.90-87,012.45-55,560.30

Finding the Fourth Proportional to 57,921.90, 87,012.45 and 55,560.30

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Solution

The fourth proportional to 57,921.90, 87,012.45 and 55,560.30 is: 83,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,921.90 : 87,012.45 = 55,560.30 : x
  2. Step 2: Convert to fraction form
    57,921.90/87,012.45 = 55,560.30/x
  3. Step 3: Cross multiply
    57,921.90x = 87,012.45 × 55,560.30
  4. Step 4: Simplify right side
    57,921.90x = 4,834,437,825.74
  5. Step 5: Solve for x
    x = 4,834,437,825.74/57,921.90
  6. Step 6: Final answer
    x = 83,464.77

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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.