Home / 55,265.88-76,264.20-31,389.42

Finding the Fourth Proportional to 55,265.88, 76,264.20 and 31,389.42

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Solution

The fourth proportional to 55,265.88, 76,264.20 and 31,389.42 is: 43,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,265.88 : 76,264.20 = 31,389.42 : x
  2. Step 2: Convert to fraction form
    55,265.88/76,264.20 = 31,389.42/x
  3. Step 3: Cross multiply
    55,265.88x = 76,264.20 × 31,389.42
  4. Step 4: Simplify right side
    55,265.88x = 2,393,889,004.76
  5. Step 5: Solve for x
    x = 2,393,889,004.76/55,265.88
  6. Step 6: Final answer
    x = 43,315.86

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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.