Home / 91,935.36-126,861.84-51,640

Finding the Fourth Proportional to 91,935.36, 126,861.84 and 51,640

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Solution

The fourth proportional to 91,935.36, 126,861.84 and 51,640 is: 71,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,935.36 : 126,861.84 = 51,640 : x
  2. Step 2: Convert to fraction form
    91,935.36/126,861.84 = 51,640/x
  3. Step 3: Cross multiply
    91,935.36x = 126,861.84 × 51,640
  4. Step 4: Simplify right side
    91,935.36x = 6,551,145,417.60
  5. Step 5: Solve for x
    x = 6,551,145,417.60/91,935.36
  6. Step 6: Final answer
    x = 71,258.17

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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.