Home / 85,062.36-117,378.42-49,254.81

Finding the Fourth Proportional to 85,062.36, 117,378.42 and 49,254.81

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Solution

The fourth proportional to 85,062.36, 117,378.42 and 49,254.81 is: 67,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.36 : 117,378.42 = 49,254.81 : x
  2. Step 2: Convert to fraction form
    85,062.36/117,378.42 = 49,254.81/x
  3. Step 3: Cross multiply
    85,062.36x = 117,378.42 × 49,254.81
  4. Step 4: Simplify right side
    85,062.36x = 5,781,451,775.20
  5. Step 5: Solve for x
    x = 5,781,451,775.20/85,062.36
  6. Step 6: Final answer
    x = 67,967.22

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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.