Home / 85,112.82-117,473.49-51,122.79

Finding the Fourth Proportional to 85,112.82, 117,473.49 and 51,122.79

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Solution

The fourth proportional to 85,112.82, 117,473.49 and 51,122.79 is: 70,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,112.82 : 117,473.49 = 51,122.79 : x
  2. Step 2: Convert to fraction form
    85,112.82/117,473.49 = 51,122.79/x
  3. Step 3: Cross multiply
    85,112.82x = 117,473.49 × 51,122.79
  4. Step 4: Simplify right side
    85,112.82x = 6,005,572,559.84
  5. Step 5: Solve for x
    x = 6,005,572,559.84/85,112.82
  6. Step 6: Final answer
    x = 70,560.14

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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.