Home / 55,132.59-76,080.66-31,260.87

Finding the Fourth Proportional to 55,132.59, 76,080.66 and 31,260.87

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Solution

The fourth proportional to 55,132.59, 76,080.66 and 31,260.87 is: 43,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.59 : 76,080.66 = 31,260.87 : x
  2. Step 2: Convert to fraction form
    55,132.59/76,080.66 = 31,260.87/x
  3. Step 3: Cross multiply
    55,132.59x = 76,080.66 × 31,260.87
  4. Step 4: Simplify right side
    55,132.59x = 2,378,347,621.77
  5. Step 5: Solve for x
    x = 2,378,347,621.77/55,132.59
  6. Step 6: Final answer
    x = 43,138.69

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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.