Home / 113,991.36-171,021.60-54,810.24

Finding the Fourth Proportional to 113,991.36, 171,021.60 and 54,810.24

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Solution

The fourth proportional to 113,991.36, 171,021.60 and 54,810.24 is: 82,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,991.36 : 171,021.60 = 54,810.24 : x
  2. Step 2: Convert to fraction form
    113,991.36/171,021.60 = 54,810.24/x
  3. Step 3: Cross multiply
    113,991.36x = 171,021.60 × 54,810.24
  4. Step 4: Simplify right side
    113,991.36x = 9,373,734,941.18
  5. Step 5: Solve for x
    x = 9,373,734,941.18/113,991.36
  6. Step 6: Final answer
    x = 82,231.98

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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.