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Finding the Fourth Proportional to 89,288.70, 133,933.05 and 69,582

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Solution

The fourth proportional to 89,288.70, 133,933.05 and 69,582 is: 104,373.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,288.70 : 133,933.05 = 69,582 : x
  2. Step 2: Convert to fraction form
    89,288.70/133,933.05 = 69,582/x
  3. Step 3: Cross multiply
    89,288.70x = 133,933.05 × 69,582
  4. Step 4: Simplify right side
    89,288.70x = 9,319,329,485.10
  5. Step 5: Solve for x
    x = 9,319,329,485.10/89,288.70
  6. Step 6: Final answer
    x = 104,373.00

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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.