Home / 57,813.71-86,719.66-31,172.10

Finding the Fourth Proportional to 57,813.71, 86,719.66 and 31,172.10

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Solution

The fourth proportional to 57,813.71, 86,719.66 and 31,172.10 is: 46,757.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,813.71 : 86,719.66 = 31,172.10 : x
  2. Step 2: Convert to fraction form
    57,813.71/86,719.66 = 31,172.10/x
  3. Step 3: Cross multiply
    57,813.71x = 86,719.66 × 31,172.10
  4. Step 4: Simplify right side
    57,813.71x = 2,703,233,757.63
  5. Step 5: Solve for x
    x = 2,703,233,757.63/57,813.71
  6. Step 6: Final answer
    x = 46,757.66

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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.