Home / 55,730.53-76,908.12-31,857.71

Finding the Fourth Proportional to 55,730.53, 76,908.12 and 31,857.71

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Solution

The fourth proportional to 55,730.53, 76,908.12 and 31,857.71 is: 43,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.53 : 76,908.12 = 31,857.71 : x
  2. Step 2: Convert to fraction form
    55,730.53/76,908.12 = 31,857.71/x
  3. Step 3: Cross multiply
    55,730.53x = 76,908.12 × 31,857.71
  4. Step 4: Simplify right side
    55,730.53x = 2,450,116,583.61
  5. Step 5: Solve for x
    x = 2,450,116,583.61/55,730.53
  6. Step 6: Final answer
    x = 43,963.63

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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.