Home / 81,424.44-112,302.54-54,558.36

Finding the Fourth Proportional to 81,424.44, 112,302.54 and 54,558.36

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Solution

The fourth proportional to 81,424.44, 112,302.54 and 54,558.36 is: 75,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424.44 : 112,302.54 = 54,558.36 : x
  2. Step 2: Convert to fraction form
    81,424.44/112,302.54 = 54,558.36/x
  3. Step 3: Cross multiply
    81,424.44x = 112,302.54 × 54,558.36
  4. Step 4: Simplify right side
    81,424.44x = 6,127,042,406.23
  5. Step 5: Solve for x
    x = 6,127,042,406.23/81,424.44
  6. Step 6: Final answer
    x = 75,248.20

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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.