Home / 81,637.43-122,339.31-46,504.49

Finding the Fourth Proportional to 81,637.43, 122,339.31 and 46,504.49

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Solution

The fourth proportional to 81,637.43, 122,339.31 and 46,504.49 is: 69,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,637.43 : 122,339.31 = 46,504.49 : x
  2. Step 2: Convert to fraction form
    81,637.43/122,339.31 = 46,504.49/x
  3. Step 3: Cross multiply
    81,637.43x = 122,339.31 × 46,504.49
  4. Step 4: Simplify right side
    81,637.43x = 5,689,327,218.50
  5. Step 5: Solve for x
    x = 5,689,327,218.50/81,637.43
  6. Step 6: Final answer
    x = 69,690.18

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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.