Home / 45,355.02-68,032.44-12,075.09

Finding the Fourth Proportional to 45,355.02, 68,032.44 and 12,075.09

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Solution

The fourth proportional to 45,355.02, 68,032.44 and 12,075.09 is: 18,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.02 : 68,032.44 = 12,075.09 : x
  2. Step 2: Convert to fraction form
    45,355.02/68,032.44 = 12,075.09/x
  3. Step 3: Cross multiply
    45,355.02x = 68,032.44 × 12,075.09
  4. Step 4: Simplify right side
    45,355.02x = 821,497,835.92
  5. Step 5: Solve for x
    x = 821,497,835.92/45,355.02
  6. Step 6: Final answer
    x = 18,112.61

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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.