Home / 89,330.40-133,801.20-57,837.60

Finding the Fourth Proportional to 89,330.40, 133,801.20 and 57,837.60

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Solution

The fourth proportional to 89,330.40, 133,801.20 and 57,837.60 is: 86,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,330.40 : 133,801.20 = 57,837.60 : x
  2. Step 2: Convert to fraction form
    89,330.40/133,801.20 = 57,837.60/x
  3. Step 3: Cross multiply
    89,330.40x = 133,801.20 × 57,837.60
  4. Step 4: Simplify right side
    89,330.40x = 7,738,740,285.12
  5. Step 5: Solve for x
    x = 7,738,740,285.12/89,330.40
  6. Step 6: Final answer
    x = 86,630.53

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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.