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Finding the Fourth Proportional to 87,021, 130,531.62 and 37,773

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Solution

The fourth proportional to 87,021, 130,531.62 and 37,773 is: 56,659.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,021 : 130,531.62 = 37,773 : x
  2. Step 2: Convert to fraction form
    87,021/130,531.62 = 37,773/x
  3. Step 3: Cross multiply
    87,021x = 130,531.62 × 37,773
  4. Step 4: Simplify right side
    87,021x = 4,930,570,882.26
  5. Step 5: Solve for x
    x = 4,930,570,882.26/87,021
  6. Step 6: Final answer
    x = 56,659.55

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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.