Home / 87,505.58-120,715.68-57,277.58

Finding the Fourth Proportional to 87,505.58, 120,715.68 and 57,277.58

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Solution

The fourth proportional to 87,505.58, 120,715.68 and 57,277.58 is: 79,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.58 : 120,715.68 = 57,277.58 : x
  2. Step 2: Convert to fraction form
    87,505.58/120,715.68 = 57,277.58/x
  3. Step 3: Cross multiply
    87,505.58x = 120,715.68 × 57,277.58
  4. Step 4: Simplify right side
    87,505.58x = 6,914,302,018.45
  5. Step 5: Solve for x
    x = 6,914,302,018.45/87,505.58
  6. Step 6: Final answer
    x = 79,015.56

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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.