Home / 85,293.42-117,710.19-47,052.78

Finding the Fourth Proportional to 85,293.42, 117,710.19 and 47,052.78

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Solution

The fourth proportional to 85,293.42, 117,710.19 and 47,052.78 is: 64,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293.42 : 117,710.19 = 47,052.78 : x
  2. Step 2: Convert to fraction form
    85,293.42/117,710.19 = 47,052.78/x
  3. Step 3: Cross multiply
    85,293.42x = 117,710.19 × 47,052.78
  4. Step 4: Simplify right side
    85,293.42x = 5,538,591,673.83
  5. Step 5: Solve for x
    x = 5,538,591,673.83/85,293.42
  6. Step 6: Final answer
    x = 64,935.74

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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.