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Finding the Fourth Proportional to 85,954.57, 128,800.02 and 36,007.34

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Solution

The fourth proportional to 85,954.57, 128,800.02 and 36,007.34 is: 53,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,954.57 : 128,800.02 = 36,007.34 : x
  2. Step 2: Convert to fraction form
    85,954.57/128,800.02 = 36,007.34/x
  3. Step 3: Cross multiply
    85,954.57x = 128,800.02 × 36,007.34
  4. Step 4: Simplify right side
    85,954.57x = 4,637,745,603.17
  5. Step 5: Solve for x
    x = 4,637,745,603.17/85,954.57
  6. Step 6: Final answer
    x = 53,955.78

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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.