Home / 87,634.80-120,938.52-53,642.64

Finding the Fourth Proportional to 87,634.80, 120,938.52 and 53,642.64

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Solution

The fourth proportional to 87,634.80, 120,938.52 and 53,642.64 is: 74,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,634.80 : 120,938.52 = 53,642.64 : x
  2. Step 2: Convert to fraction form
    87,634.80/120,938.52 = 53,642.64/x
  3. Step 3: Cross multiply
    87,634.80x = 120,938.52 × 53,642.64
  4. Step 4: Simplify right side
    87,634.80x = 6,487,461,490.49
  5. Step 5: Solve for x
    x = 6,487,461,490.49/87,634.80
  6. Step 6: Final answer
    x = 74,028.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.