Home / 57,269.60-85,883.81-19,819.50

Finding the Fourth Proportional to 57,269.60, 85,883.81 and 19,819.50

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Solution

The fourth proportional to 57,269.60, 85,883.81 and 19,819.50 is: 29,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,269.60 : 85,883.81 = 19,819.50 : x
  2. Step 2: Convert to fraction form
    57,269.60/85,883.81 = 19,819.50/x
  3. Step 3: Cross multiply
    57,269.60x = 85,883.81 × 19,819.50
  4. Step 4: Simplify right side
    57,269.60x = 1,702,174,073.20
  5. Step 5: Solve for x
    x = 1,702,174,073.20/57,269.60
  6. Step 6: Final answer
    x = 29,722.13

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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.