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Finding the Fourth Proportional to 85,774.23, 128,629.76 and 29,600.01

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Solution

The fourth proportional to 85,774.23, 128,629.76 and 29,600.01 is: 44,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,774.23 : 128,629.76 = 29,600.01 : x
  2. Step 2: Convert to fraction form
    85,774.23/128,629.76 = 29,600.01/x
  3. Step 3: Cross multiply
    85,774.23x = 128,629.76 × 29,600.01
  4. Step 4: Simplify right side
    85,774.23x = 3,807,442,034.30
  5. Step 5: Solve for x
    x = 3,807,442,034.30/85,774.23
  6. Step 6: Final answer
    x = 44,389.11

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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.