Home / 87,019.82-130,566.94-36,430.66

Finding the Fourth Proportional to 87,019.82, 130,566.94 and 36,430.66

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Solution

The fourth proportional to 87,019.82, 130,566.94 and 36,430.66 is: 54,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019.82 : 130,566.94 = 36,430.66 : x
  2. Step 2: Convert to fraction form
    87,019.82/130,566.94 = 36,430.66/x
  3. Step 3: Cross multiply
    87,019.82x = 130,566.94 × 36,430.66
  4. Step 4: Simplify right side
    87,019.82x = 4,756,640,043.42
  5. Step 5: Solve for x
    x = 4,756,640,043.42/87,019.82
  6. Step 6: Final answer
    x = 54,661.57

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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.