Home / 80,372.72-110,916.60-48,547.28

Finding the Fourth Proportional to 80,372.72, 110,916.60 and 48,547.28

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Solution

The fourth proportional to 80,372.72, 110,916.60 and 48,547.28 is: 66,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.72 : 110,916.60 = 48,547.28 : x
  2. Step 2: Convert to fraction form
    80,372.72/110,916.60 = 48,547.28/x
  3. Step 3: Cross multiply
    80,372.72x = 110,916.60 × 48,547.28
  4. Step 4: Simplify right side
    80,372.72x = 5,384,699,236.85
  5. Step 5: Solve for x
    x = 5,384,699,236.85/80,372.72
  6. Step 6: Final answer
    x = 66,996.60

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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.