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Finding the Fourth Proportional to 87,094.62, 130,549.44 and 55,405

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Solution

The fourth proportional to 87,094.62, 130,549.44 and 55,405 is: 83,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,094.62 : 130,549.44 = 55,405 : x
  2. Step 2: Convert to fraction form
    87,094.62/130,549.44 = 55,405/x
  3. Step 3: Cross multiply
    87,094.62x = 130,549.44 × 55,405
  4. Step 4: Simplify right side
    87,094.62x = 7,233,091,723.20
  5. Step 5: Solve for x
    x = 7,233,091,723.20/87,094.62
  6. Step 6: Final answer
    x = 83,048.66

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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.