Home / 81,424.36-112,359.54-49,588.12

Finding the Fourth Proportional to 81,424.36, 112,359.54 and 49,588.12

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Solution

The fourth proportional to 81,424.36, 112,359.54 and 49,588.12 is: 68,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424.36 : 112,359.54 = 49,588.12 : x
  2. Step 2: Convert to fraction form
    81,424.36/112,359.54 = 49,588.12/x
  3. Step 3: Cross multiply
    81,424.36x = 112,359.54 × 49,588.12
  4. Step 4: Simplify right side
    81,424.36x = 5,571,698,352.66
  5. Step 5: Solve for x
    x = 5,571,698,352.66/81,424.36
  6. Step 6: Final answer
    x = 68,427.90

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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.