Home / 87,696.68-121,018.74-49,969.04

Finding the Fourth Proportional to 87,696.68, 121,018.74 and 49,969.04

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Solution

The fourth proportional to 87,696.68, 121,018.74 and 49,969.04 is: 68,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,696.68 : 121,018.74 = 49,969.04 : x
  2. Step 2: Convert to fraction form
    87,696.68/121,018.74 = 49,969.04/x
  3. Step 3: Cross multiply
    87,696.68x = 121,018.74 × 49,969.04
  4. Step 4: Simplify right side
    87,696.68x = 6,047,190,259.81
  5. Step 5: Solve for x
    x = 6,047,190,259.81/87,696.68
  6. Step 6: Final answer
    x = 68,955.75

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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.