Home / 61,380.72-84,338.28-48,783.60

Finding the Fourth Proportional to 61,380.72, 84,338.28 and 48,783.60

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Solution

The fourth proportional to 61,380.72, 84,338.28 and 48,783.60 is: 67,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,380.72 : 84,338.28 = 48,783.60 : x
  2. Step 2: Convert to fraction form
    61,380.72/84,338.28 = 48,783.60/x
  3. Step 3: Cross multiply
    61,380.72x = 84,338.28 × 48,783.60
  4. Step 4: Simplify right side
    61,380.72x = 4,114,324,916.21
  5. Step 5: Solve for x
    x = 4,114,324,916.21/61,380.72
  6. Step 6: Final answer
    x = 67,029.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.