Home / 81,204.56-121,634-46,126.16

Finding the Fourth Proportional to 81,204.56, 121,634 and 46,126.16

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Solution

The fourth proportional to 81,204.56, 121,634 and 46,126.16 is: 69,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,204.56 : 121,634 = 46,126.16 : x
  2. Step 2: Convert to fraction form
    81,204.56/121,634 = 46,126.16/x
  3. Step 3: Cross multiply
    81,204.56x = 121,634 × 46,126.16
  4. Step 4: Simplify right side
    81,204.56x = 5,610,509,345.44
  5. Step 5: Solve for x
    x = 5,610,509,345.44/81,204.56
  6. Step 6: Final answer
    x = 69,091.06

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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.