Home / 87,361.09-130,844.73-61,182.70

Finding the Fourth Proportional to 87,361.09, 130,844.73 and 61,182.70

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Solution

The fourth proportional to 87,361.09, 130,844.73 and 61,182.70 is: 91,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361.09 : 130,844.73 = 61,182.70 : x
  2. Step 2: Convert to fraction form
    87,361.09/130,844.73 = 61,182.70/x
  3. Step 3: Cross multiply
    87,361.09x = 130,844.73 × 61,182.70
  4. Step 4: Simplify right side
    87,361.09x = 8,005,433,207.95
  5. Step 5: Solve for x
    x = 8,005,433,207.95/87,361.09
  6. Step 6: Final answer
    x = 91,636.15

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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.