Home / 87,103.15-130,612.47-51,089.43

Finding the Fourth Proportional to 87,103.15, 130,612.47 and 51,089.43

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Solution

The fourth proportional to 87,103.15, 130,612.47 and 51,089.43 is: 76,609.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,103.15 : 130,612.47 = 51,089.43 : x
  2. Step 2: Convert to fraction form
    87,103.15/130,612.47 = 51,089.43/x
  3. Step 3: Cross multiply
    87,103.15x = 130,612.47 × 51,089.43
  4. Step 4: Simplify right side
    87,103.15x = 6,672,916,941.40
  5. Step 5: Solve for x
    x = 6,672,916,941.40/87,103.15
  6. Step 6: Final answer
    x = 76,609.37

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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.