Home / 56,756.43-78,324.40-31,262.89

Finding the Fourth Proportional to 56,756.43, 78,324.40 and 31,262.89

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Solution

The fourth proportional to 56,756.43, 78,324.40 and 31,262.89 is: 43,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.43 : 78,324.40 = 31,262.89 : x
  2. Step 2: Convert to fraction form
    56,756.43/78,324.40 = 31,262.89/x
  3. Step 3: Cross multiply
    56,756.43x = 78,324.40 × 31,262.89
  4. Step 4: Simplify right side
    56,756.43x = 2,448,647,101.52
  5. Step 5: Solve for x
    x = 2,448,647,101.52/56,756.43
  6. Step 6: Final answer
    x = 43,143.08

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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.