Home / 77,171.37-115,441.26-58,311.21

Finding the Fourth Proportional to 77,171.37, 115,441.26 and 58,311.21

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Solution

The fourth proportional to 77,171.37, 115,441.26 and 58,311.21 is: 87,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171.37 : 115,441.26 = 58,311.21 : x
  2. Step 2: Convert to fraction form
    77,171.37/115,441.26 = 58,311.21/x
  3. Step 3: Cross multiply
    77,171.37x = 115,441.26 × 58,311.21
  4. Step 4: Simplify right side
    77,171.37x = 6,731,519,554.52
  5. Step 5: Solve for x
    x = 6,731,519,554.52/77,171.37
  6. Step 6: Final answer
    x = 87,228.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.