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Finding the Fourth Proportional to 87,019, 130,528.62 and 37,771

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Solution

The fourth proportional to 87,019, 130,528.62 and 37,771 is: 56,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019 : 130,528.62 = 37,771 : x
  2. Step 2: Convert to fraction form
    87,019/130,528.62 = 37,771/x
  3. Step 3: Cross multiply
    87,019x = 130,528.62 × 37,771
  4. Step 4: Simplify right side
    87,019x = 4,930,196,506.02
  5. Step 5: Solve for x
    x = 4,930,196,506.02/87,019
  6. Step 6: Final answer
    x = 56,656.55

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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.