Home / 55,815.10-83,576.85-53,190.70

Finding the Fourth Proportional to 55,815.10, 83,576.85 and 53,190.70

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Solution

The fourth proportional to 55,815.10, 83,576.85 and 53,190.70 is: 79,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,815.10 : 83,576.85 = 53,190.70 : x
  2. Step 2: Convert to fraction form
    55,815.10/83,576.85 = 53,190.70/x
  3. Step 3: Cross multiply
    55,815.10x = 83,576.85 × 53,190.70
  4. Step 4: Simplify right side
    55,815.10x = 4,445,511,155.30
  5. Step 5: Solve for x
    x = 4,445,511,155.30/55,815.10
  6. Step 6: Final answer
    x = 79,647.11

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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.