Home / 85,610.50-118,142.68-47,372.82

Finding the Fourth Proportional to 85,610.50, 118,142.68 and 47,372.82

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Solution

The fourth proportional to 85,610.50, 118,142.68 and 47,372.82 is: 65,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,610.50 : 118,142.68 = 47,372.82 : x
  2. Step 2: Convert to fraction form
    85,610.50/118,142.68 = 47,372.82/x
  3. Step 3: Cross multiply
    85,610.50x = 118,142.68 × 47,372.82
  4. Step 4: Simplify right side
    85,610.50x = 5,596,751,913.96
  5. Step 5: Solve for x
    x = 5,596,751,913.96/85,610.50
  6. Step 6: Final answer
    x = 65,374.60

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1.5x scale

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.