Home / 57,285.78-85,917.54-28,815.15

Finding the Fourth Proportional to 57,285.78, 85,917.54 and 28,815.15

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Solution

The fourth proportional to 57,285.78, 85,917.54 and 28,815.15 is: 43,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,285.78 : 85,917.54 = 28,815.15 : x
  2. Step 2: Convert to fraction form
    57,285.78/85,917.54 = 28,815.15/x
  3. Step 3: Cross multiply
    57,285.78x = 85,917.54 × 28,815.15
  4. Step 4: Simplify right side
    57,285.78x = 2,475,726,802.73
  5. Step 5: Solve for x
    x = 2,475,726,802.73/57,285.78
  6. Step 6: Final answer
    x = 43,217.13

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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.