Home / 85,323.24-117,736.74-60,129

Finding the Fourth Proportional to 85,323.24, 117,736.74 and 60,129

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Solution

The fourth proportional to 85,323.24, 117,736.74 and 60,129 is: 82,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,323.24 : 117,736.74 = 60,129 : x
  2. Step 2: Convert to fraction form
    85,323.24/117,736.74 = 60,129/x
  3. Step 3: Cross multiply
    85,323.24x = 117,736.74 × 60,129
  4. Step 4: Simplify right side
    85,323.24x = 7,079,392,439.46
  5. Step 5: Solve for x
    x = 7,079,392,439.46/85,323.24
  6. Step 6: Final answer
    x = 82,971.44

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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.