Home / 85,861.31-118,500.66-47,629.35

Finding the Fourth Proportional to 85,861.31, 118,500.66 and 47,629.35

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Solution

The fourth proportional to 85,861.31, 118,500.66 and 47,629.35 is: 65,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861.31 : 118,500.66 = 47,629.35 : x
  2. Step 2: Convert to fraction form
    85,861.31/118,500.66 = 47,629.35/x
  3. Step 3: Cross multiply
    85,861.31x = 118,500.66 × 47,629.35
  4. Step 4: Simplify right side
    85,861.31x = 5,644,109,410.37
  5. Step 5: Solve for x
    x = 5,644,109,410.37/85,861.31
  6. Step 6: Final answer
    x = 65,735.19

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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.