Home / 87,205.32-120,355.56-50,918.64

Finding the Fourth Proportional to 87,205.32, 120,355.56 and 50,918.64

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Solution

The fourth proportional to 87,205.32, 120,355.56 and 50,918.64 is: 70,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,205.32 : 120,355.56 = 50,918.64 : x
  2. Step 2: Convert to fraction form
    87,205.32/120,355.56 = 50,918.64/x
  3. Step 3: Cross multiply
    87,205.32x = 120,355.56 × 50,918.64
  4. Step 4: Simplify right side
    87,205.32x = 6,128,341,431.64
  5. Step 5: Solve for x
    x = 6,128,341,431.64/87,205.32
  6. Step 6: Final answer
    x = 70,274.86

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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.