Home / 45,909.69-68,865.29-14,320.60

Finding the Fourth Proportional to 45,909.69, 68,865.29 and 14,320.60

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Solution

The fourth proportional to 45,909.69, 68,865.29 and 14,320.60 is: 21,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,909.69 : 68,865.29 = 14,320.60 : x
  2. Step 2: Convert to fraction form
    45,909.69/68,865.29 = 14,320.60/x
  3. Step 3: Cross multiply
    45,909.69x = 68,865.29 × 14,320.60
  4. Step 4: Simplify right side
    45,909.69x = 986,192,081.91
  5. Step 5: Solve for x
    x = 986,192,081.91/45,909.69
  6. Step 6: Final answer
    x = 21,481.13

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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.