Home / 81,242.21-112,112.15-44,942.71

Finding the Fourth Proportional to 81,242.21, 112,112.15 and 44,942.71

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Solution

The fourth proportional to 81,242.21, 112,112.15 and 44,942.71 is: 62,019.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,242.21 : 112,112.15 = 44,942.71 : x
  2. Step 2: Convert to fraction form
    81,242.21/112,112.15 = 44,942.71/x
  3. Step 3: Cross multiply
    81,242.21x = 112,112.15 × 44,942.71
  4. Step 4: Simplify right side
    81,242.21x = 5,038,623,844.93
  5. Step 5: Solve for x
    x = 5,038,623,844.93/81,242.21
  6. Step 6: Final answer
    x = 62,019.78

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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.