Home / 87,088.60-120,193.38-51,281.92

Finding the Fourth Proportional to 87,088.60, 120,193.38 and 51,281.92

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Solution

The fourth proportional to 87,088.60, 120,193.38 and 51,281.92 is: 70,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,088.60 : 120,193.38 = 51,281.92 : x
  2. Step 2: Convert to fraction form
    87,088.60/120,193.38 = 51,281.92/x
  3. Step 3: Cross multiply
    87,088.60x = 120,193.38 × 51,281.92
  4. Step 4: Simplify right side
    87,088.60x = 6,163,747,297.69
  5. Step 5: Solve for x
    x = 6,163,747,297.69/87,088.60
  6. Step 6: Final answer
    x = 70,775.59

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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.