Home / 40,105.10-60,266.70-21,398.35

Finding the Fourth Proportional to 40,105.10, 60,266.70 and 21,398.35

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Solution

The fourth proportional to 40,105.10, 60,266.70 and 21,398.35 is: 32,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,105.10 : 60,266.70 = 21,398.35 : x
  2. Step 2: Convert to fraction form
    40,105.10/60,266.70 = 21,398.35/x
  3. Step 3: Cross multiply
    40,105.10x = 60,266.70 × 21,398.35
  4. Step 4: Simplify right side
    40,105.10x = 1,289,607,939.95
  5. Step 5: Solve for x
    x = 1,289,607,939.95/40,105.10
  6. Step 6: Final answer
    x = 32,155.71

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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.