Home / 87,057.36-120,076.95-79,909.98

Finding the Fourth Proportional to 87,057.36, 120,076.95 and 79,909.98

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Solution

The fourth proportional to 87,057.36, 120,076.95 and 79,909.98 is: 110,218.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,057.36 : 120,076.95 = 79,909.98 : x
  2. Step 2: Convert to fraction form
    87,057.36/120,076.95 = 79,909.98/x
  3. Step 3: Cross multiply
    87,057.36x = 120,076.95 × 79,909.98
  4. Step 4: Simplify right side
    87,057.36x = 9,595,346,672.96
  5. Step 5: Solve for x
    x = 9,595,346,672.96/87,057.36
  6. Step 6: Final answer
    x = 110,218.67

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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.