Home / 45,918.54-68,871.33-14,321.25

Finding the Fourth Proportional to 45,918.54, 68,871.33 and 14,321.25

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Solution

The fourth proportional to 45,918.54, 68,871.33 and 14,321.25 is: 21,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.54 : 68,871.33 = 14,321.25 : x
  2. Step 2: Convert to fraction form
    45,918.54/68,871.33 = 14,321.25/x
  3. Step 3: Cross multiply
    45,918.54x = 68,871.33 × 14,321.25
  4. Step 4: Simplify right side
    45,918.54x = 986,323,534.76
  5. Step 5: Solve for x
    x = 986,323,534.76/45,918.54
  6. Step 6: Final answer
    x = 21,479.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.