Home / 57,429.26-86,142.81-31,300.28

Finding the Fourth Proportional to 57,429.26, 86,142.81 and 31,300.28

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Solution

The fourth proportional to 57,429.26, 86,142.81 and 31,300.28 is: 46,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,429.26 : 86,142.81 = 31,300.28 : x
  2. Step 2: Convert to fraction form
    57,429.26/86,142.81 = 31,300.28/x
  3. Step 3: Cross multiply
    57,429.26x = 86,142.81 × 31,300.28
  4. Step 4: Simplify right side
    57,429.26x = 2,696,294,072.99
  5. Step 5: Solve for x
    x = 2,696,294,072.99/57,429.26
  6. Step 6: Final answer
    x = 46,949.83

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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.