Home / 85,331.40-117,738.06-51,330.84

Finding the Fourth Proportional to 85,331.40, 117,738.06 and 51,330.84

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Solution

The fourth proportional to 85,331.40, 117,738.06 and 51,330.84 is: 70,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.40 : 117,738.06 = 51,330.84 : x
  2. Step 2: Convert to fraction form
    85,331.40/117,738.06 = 51,330.84/x
  3. Step 3: Cross multiply
    85,331.40x = 117,738.06 × 51,330.84
  4. Step 4: Simplify right side
    85,331.40x = 6,043,593,519.77
  5. Step 5: Solve for x
    x = 6,043,593,519.77/85,331.40
  6. Step 6: Final answer
    x = 70,824.97

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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.