Home / 87,730.64-131,615.40-40,958

Finding the Fourth Proportional to 87,730.64, 131,615.40 and 40,958

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Solution

The fourth proportional to 87,730.64, 131,615.40 and 40,958 is: 61,446.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.64 : 131,615.40 = 40,958 : x
  2. Step 2: Convert to fraction form
    87,730.64/131,615.40 = 40,958/x
  3. Step 3: Cross multiply
    87,730.64x = 131,615.40 × 40,958
  4. Step 4: Simplify right side
    87,730.64x = 5,390,703,553.20
  5. Step 5: Solve for x
    x = 5,390,703,553.20/87,730.64
  6. Step 6: Final answer
    x = 61,446.08

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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.