Home / 85,640.24-118,181.06-47,401.34

Finding the Fourth Proportional to 85,640.24, 118,181.06 and 47,401.34

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Solution

The fourth proportional to 85,640.24, 118,181.06 and 47,401.34 is: 65,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,640.24 : 118,181.06 = 47,401.34 : x
  2. Step 2: Convert to fraction form
    85,640.24/118,181.06 = 47,401.34/x
  3. Step 3: Cross multiply
    85,640.24x = 118,181.06 × 47,401.34
  4. Step 4: Simplify right side
    85,640.24x = 5,601,940,606.62
  5. Step 5: Solve for x
    x = 5,601,940,606.62/85,640.24
  6. Step 6: Final answer
    x = 65,412.48

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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.