Home / 81,885.25-122,631.04-46,718.29

Finding the Fourth Proportional to 81,885.25, 122,631.04 and 46,718.29

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Solution

The fourth proportional to 81,885.25, 122,631.04 and 46,718.29 is: 69,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,885.25 : 122,631.04 = 46,718.29 : x
  2. Step 2: Convert to fraction form
    81,885.25/122,631.04 = 46,718.29/x
  3. Step 3: Cross multiply
    81,885.25x = 122,631.04 × 46,718.29
  4. Step 4: Simplify right side
    81,885.25x = 5,729,111,642.97
  5. Step 5: Solve for x
    x = 5,729,111,642.97/81,885.25
  6. Step 6: Final answer
    x = 69,965.13

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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.