Home / 57,171.24-85,752.72-19,220.76

Finding the Fourth Proportional to 57,171.24, 85,752.72 and 19,220.76

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Solution

The fourth proportional to 57,171.24, 85,752.72 and 19,220.76 is: 28,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,171.24 : 85,752.72 = 19,220.76 : x
  2. Step 2: Convert to fraction form
    57,171.24/85,752.72 = 19,220.76/x
  3. Step 3: Cross multiply
    57,171.24x = 85,752.72 × 19,220.76
  4. Step 4: Simplify right side
    57,171.24x = 1,648,232,450.47
  5. Step 5: Solve for x
    x = 1,648,232,450.47/57,171.24
  6. Step 6: Final answer
    x = 28,829.75

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1.5x scale

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.