Home / 55,132.92-76,085.14-31,260.60

Finding the Fourth Proportional to 55,132.92, 76,085.14 and 31,260.60

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Solution

The fourth proportional to 55,132.92, 76,085.14 and 31,260.60 is: 43,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.92 : 76,085.14 = 31,260.60 : x
  2. Step 2: Convert to fraction form
    55,132.92/76,085.14 = 31,260.60/x
  3. Step 3: Cross multiply
    55,132.92x = 76,085.14 × 31,260.60
  4. Step 4: Simplify right side
    55,132.92x = 2,378,467,127.48
  5. Step 5: Solve for x
    x = 2,378,467,127.48/55,132.92
  6. Step 6: Final answer
    x = 43,140.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.