Home / 87,161.49-130,618.64-36,505.94

Finding the Fourth Proportional to 87,161.49, 130,618.64 and 36,505.94

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Solution

The fourth proportional to 87,161.49, 130,618.64 and 36,505.94 is: 54,707.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,161.49 : 130,618.64 = 36,505.94 : x
  2. Step 2: Convert to fraction form
    87,161.49/130,618.64 = 36,505.94/x
  3. Step 3: Cross multiply
    87,161.49x = 130,618.64 × 36,505.94
  4. Step 4: Simplify right side
    87,161.49x = 4,768,355,399.10
  5. Step 5: Solve for x
    x = 4,768,355,399.10/87,161.49
  6. Step 6: Final answer
    x = 54,707.13

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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.