Home / 87,059.64-120,141.18-51,251.16

Finding the Fourth Proportional to 87,059.64, 120,141.18 and 51,251.16

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Solution

The fourth proportional to 87,059.64, 120,141.18 and 51,251.16 is: 70,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,059.64 : 120,141.18 = 51,251.16 : x
  2. Step 2: Convert to fraction form
    87,059.64/120,141.18 = 51,251.16/x
  3. Step 3: Cross multiply
    87,059.64x = 120,141.18 × 51,251.16
  4. Step 4: Simplify right side
    87,059.64x = 6,157,374,838.77
  5. Step 5: Solve for x
    x = 6,157,374,838.77/87,059.64
  6. Step 6: Final answer
    x = 70,725.94

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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.