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Finding the Fourth Proportional to 89,890, 134,834.52 and 23,330.08

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Solution

The fourth proportional to 89,890, 134,834.52 and 23,330.08 is: 34,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,890 : 134,834.52 = 23,330.08 : x
  2. Step 2: Convert to fraction form
    89,890/134,834.52 = 23,330.08/x
  3. Step 3: Cross multiply
    89,890x = 134,834.52 × 23,330.08
  4. Step 4: Simplify right side
    89,890x = 3,145,700,138.36
  5. Step 5: Solve for x
    x = 3,145,700,138.36/89,890
  6. Step 6: Final answer
    x = 34,995.00

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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.