Home / 49,921.36-68,881.42-31,779.38

Finding the Fourth Proportional to 49,921.36, 68,881.42 and 31,779.38

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Solution

The fourth proportional to 49,921.36, 68,881.42 and 31,779.38 is: 43,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921.36 : 68,881.42 = 31,779.38 : x
  2. Step 2: Convert to fraction form
    49,921.36/68,881.42 = 31,779.38/x
  3. Step 3: Cross multiply
    49,921.36x = 68,881.42 × 31,779.38
  4. Step 4: Simplify right side
    49,921.36x = 2,189,008,821.12
  5. Step 5: Solve for x
    x = 2,189,008,821.12/49,921.36
  6. Step 6: Final answer
    x = 43,849.14

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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.