Home / 87,911.64-121,317.91-47,626.42

Finding the Fourth Proportional to 87,911.64, 121,317.91 and 47,626.42

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Solution

The fourth proportional to 87,911.64, 121,317.91 and 47,626.42 is: 65,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,911.64 : 121,317.91 = 47,626.42 : x
  2. Step 2: Convert to fraction form
    87,911.64/121,317.91 = 47,626.42/x
  3. Step 3: Cross multiply
    87,911.64x = 121,317.91 × 47,626.42
  4. Step 4: Simplify right side
    87,911.64x = 5,777,937,735.18
  5. Step 5: Solve for x
    x = 5,777,937,735.18/87,911.64
  6. Step 6: Final answer
    x = 65,724.38

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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.