Home / 83,764.16-115,621.49-53,630.64

Finding the Fourth Proportional to 83,764.16, 115,621.49 and 53,630.64

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Solution

The fourth proportional to 83,764.16, 115,621.49 and 53,630.64 is: 74,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,764.16 : 115,621.49 = 53,630.64 : x
  2. Step 2: Convert to fraction form
    83,764.16/115,621.49 = 53,630.64/x
  3. Step 3: Cross multiply
    83,764.16x = 115,621.49 × 53,630.64
  4. Step 4: Simplify right side
    83,764.16x = 6,200,854,640.53
  5. Step 5: Solve for x
    x = 6,200,854,640.53/83,764.16
  6. Step 6: Final answer
    x = 74,027.54

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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.