Home / 85,344.79-117,816.78-49,529.02

Finding the Fourth Proportional to 85,344.79, 117,816.78 and 49,529.02

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Solution

The fourth proportional to 85,344.79, 117,816.78 and 49,529.02 is: 68,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,344.79 : 117,816.78 = 49,529.02 : x
  2. Step 2: Convert to fraction form
    85,344.79/117,816.78 = 49,529.02/x
  3. Step 3: Cross multiply
    85,344.79x = 117,816.78 × 49,529.02
  4. Step 4: Simplify right side
    85,344.79x = 5,835,349,652.96
  5. Step 5: Solve for x
    x = 5,835,349,652.96/85,344.79
  6. Step 6: Final answer
    x = 68,373.82

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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.