Home / 45,355.26-68,031-13,764.18

Finding the Fourth Proportional to 45,355.26, 68,031 and 13,764.18

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Solution

The fourth proportional to 45,355.26, 68,031 and 13,764.18 is: 20,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.26 : 68,031 = 13,764.18 : x
  2. Step 2: Convert to fraction form
    45,355.26/68,031 = 13,764.18/x
  3. Step 3: Cross multiply
    45,355.26x = 68,031 × 13,764.18
  4. Step 4: Simplify right side
    45,355.26x = 936,390,929.58
  5. Step 5: Solve for x
    x = 936,390,929.58/45,355.26
  6. Step 6: Final answer
    x = 20,645.70

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1.5x scale

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.