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Finding the Fourth Proportional to 85,398.24, 128,102.03 and 35,483.39

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Solution

The fourth proportional to 85,398.24, 128,102.03 and 35,483.39 is: 53,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,398.24 : 128,102.03 = 35,483.39 : x
  2. Step 2: Convert to fraction form
    85,398.24/128,102.03 = 35,483.39/x
  3. Step 3: Cross multiply
    85,398.24x = 128,102.03 × 35,483.39
  4. Step 4: Simplify right side
    85,398.24x = 4,545,494,085.80
  5. Step 5: Solve for x
    x = 4,545,494,085.80/85,398.24
  6. Step 6: Final answer
    x = 53,227.02

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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.