Home / 45,551.20-68,321.04-14,389.60

Finding the Fourth Proportional to 45,551.20, 68,321.04 and 14,389.60

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Solution

The fourth proportional to 45,551.20, 68,321.04 and 14,389.60 is: 21,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,551.20 : 68,321.04 = 14,389.60 : x
  2. Step 2: Convert to fraction form
    45,551.20/68,321.04 = 14,389.60/x
  3. Step 3: Cross multiply
    45,551.20x = 68,321.04 × 14,389.60
  4. Step 4: Simplify right side
    45,551.20x = 983,112,437.18
  5. Step 5: Solve for x
    x = 983,112,437.18/45,551.20
  6. Step 6: Final answer
    x = 21,582.58

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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.