Home / 85,078.24-127,618.54-32,490.60

Finding the Fourth Proportional to 85,078.24, 127,618.54 and 32,490.60

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Solution

The fourth proportional to 85,078.24, 127,618.54 and 32,490.60 is: 48,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.24 : 127,618.54 = 32,490.60 : x
  2. Step 2: Convert to fraction form
    85,078.24/127,618.54 = 32,490.60/x
  3. Step 3: Cross multiply
    85,078.24x = 127,618.54 × 32,490.60
  4. Step 4: Simplify right side
    85,078.24x = 4,146,402,935.72
  5. Step 5: Solve for x
    x = 4,146,402,935.72/85,078.24
  6. Step 6: Final answer
    x = 48,736.35

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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.