Home / 55,803.10-76,979.70-35,638.78

Finding the Fourth Proportional to 55,803.10, 76,979.70 and 35,638.78

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Solution

The fourth proportional to 55,803.10, 76,979.70 and 35,638.78 is: 49,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,803.10 : 76,979.70 = 35,638.78 : x
  2. Step 2: Convert to fraction form
    55,803.10/76,979.70 = 35,638.78/x
  3. Step 3: Cross multiply
    55,803.10x = 76,979.70 × 35,638.78
  4. Step 4: Simplify right side
    55,803.10x = 2,743,462,592.77
  5. Step 5: Solve for x
    x = 2,743,462,592.77/55,803.10
  6. Step 6: Final answer
    x = 49,163.26

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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.