Home / 85,893.42-118,508.69-55,680.02

Finding the Fourth Proportional to 85,893.42, 118,508.69 and 55,680.02

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Solution

The fourth proportional to 85,893.42, 118,508.69 and 55,680.02 is: 76,822.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,893.42 : 118,508.69 = 55,680.02 : x
  2. Step 2: Convert to fraction form
    85,893.42/118,508.69 = 55,680.02/x
  3. Step 3: Cross multiply
    85,893.42x = 118,508.69 × 55,680.02
  4. Step 4: Simplify right side
    85,893.42x = 6,598,565,636.83
  5. Step 5: Solve for x
    x = 6,598,565,636.83/85,893.42
  6. Step 6: Final answer
    x = 76,822.71

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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.