Home / 81,149.16-121,760.64-41,684.76

Finding the Fourth Proportional to 81,149.16, 121,760.64 and 41,684.76

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Solution

The fourth proportional to 81,149.16, 121,760.64 and 41,684.76 is: 62,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,149.16 : 121,760.64 = 41,684.76 : x
  2. Step 2: Convert to fraction form
    81,149.16/121,760.64 = 41,684.76/x
  3. Step 3: Cross multiply
    81,149.16x = 121,760.64 × 41,684.76
  4. Step 4: Simplify right side
    81,149.16x = 5,075,563,055.85
  5. Step 5: Solve for x
    x = 5,075,563,055.85/81,149.16
  6. Step 6: Final answer
    x = 62,546.09

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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.