Home / 45,277.50-67,920-14,112.75

Finding the Fourth Proportional to 45,277.50, 67,920 and 14,112.75

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Solution

The fourth proportional to 45,277.50, 67,920 and 14,112.75 is: 21,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,277.50 : 67,920 = 14,112.75 : x
  2. Step 2: Convert to fraction form
    45,277.50/67,920 = 14,112.75/x
  3. Step 3: Cross multiply
    45,277.50x = 67,920 × 14,112.75
  4. Step 4: Simplify right side
    45,277.50x = 958,537,980
  5. Step 5: Solve for x
    x = 958,537,980/45,277.50
  6. Step 6: Final answer
    x = 21,170.29

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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.