Home / 45,300.78-67,924.34-13,701.26

Finding the Fourth Proportional to 45,300.78, 67,924.34 and 13,701.26

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Solution

The fourth proportional to 45,300.78, 67,924.34 and 13,701.26 is: 20,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,300.78 : 67,924.34 = 13,701.26 : x
  2. Step 2: Convert to fraction form
    45,300.78/67,924.34 = 13,701.26/x
  3. Step 3: Cross multiply
    45,300.78x = 67,924.34 × 13,701.26
  4. Step 4: Simplify right side
    45,300.78x = 930,649,195.35
  5. Step 5: Solve for x
    x = 930,649,195.35/45,300.78
  6. Step 6: Final answer
    x = 20,543.78

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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.