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Finding the Fourth Proportional to 85,398.33, 128,102.18 and 35,483.48

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Solution

The fourth proportional to 85,398.33, 128,102.18 and 35,483.48 is: 53,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,398.33 : 128,102.18 = 35,483.48 : x
  2. Step 2: Convert to fraction form
    85,398.33/128,102.18 = 35,483.48/x
  3. Step 3: Cross multiply
    85,398.33x = 128,102.18 × 35,483.48
  4. Step 4: Simplify right side
    85,398.33x = 4,545,510,324.06
  5. Step 5: Solve for x
    x = 4,545,510,324.06/85,398.33
  6. Step 6: Final answer
    x = 53,227.16

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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.