Home / 85,974.72-118,645.56-47,735.64

Finding the Fourth Proportional to 85,974.72, 118,645.56 and 47,735.64

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Solution

The fourth proportional to 85,974.72, 118,645.56 and 47,735.64 is: 65,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,974.72 : 118,645.56 = 47,735.64 : x
  2. Step 2: Convert to fraction form
    85,974.72/118,645.56 = 47,735.64/x
  3. Step 3: Cross multiply
    85,974.72x = 118,645.56 × 47,735.64
  4. Step 4: Simplify right side
    85,974.72x = 5,663,621,739.76
  5. Step 5: Solve for x
    x = 5,663,621,739.76/85,974.72
  6. Step 6: Final answer
    x = 65,875.43

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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.