Home / 87,970.64-131,856.93-43,629.21

Finding the Fourth Proportional to 87,970.64, 131,856.93 and 43,629.21

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Solution

The fourth proportional to 87,970.64, 131,856.93 and 43,629.21 is: 65,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.64 : 131,856.93 = 43,629.21 : x
  2. Step 2: Convert to fraction form
    87,970.64/131,856.93 = 43,629.21/x
  3. Step 3: Cross multiply
    87,970.64x = 131,856.93 × 43,629.21
  4. Step 4: Simplify right side
    87,970.64x = 5,752,813,688.93
  5. Step 5: Solve for x
    x = 5,752,813,688.93/87,970.64
  6. Step 6: Final answer
    x = 65,394.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.