Home / 81,537.68-122,109.48-46,370.72

Finding the Fourth Proportional to 81,537.68, 122,109.48 and 46,370.72

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Solution

The fourth proportional to 81,537.68, 122,109.48 and 46,370.72 is: 69,444.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.68 : 122,109.48 = 46,370.72 : x
  2. Step 2: Convert to fraction form
    81,537.68/122,109.48 = 46,370.72/x
  3. Step 3: Cross multiply
    81,537.68x = 122,109.48 × 46,370.72
  4. Step 4: Simplify right side
    81,537.68x = 5,662,304,506.43
  5. Step 5: Solve for x
    x = 5,662,304,506.43/81,537.68
  6. Step 6: Final answer
    x = 69,444.02

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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.