Home / 81,110.49-111,929.09-46,652.60

Finding the Fourth Proportional to 81,110.49, 111,929.09 and 46,652.60

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Solution

The fourth proportional to 81,110.49, 111,929.09 and 46,652.60 is: 64,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,110.49 : 111,929.09 = 46,652.60 : x
  2. Step 2: Convert to fraction form
    81,110.49/111,929.09 = 46,652.60/x
  3. Step 3: Cross multiply
    81,110.49x = 111,929.09 × 46,652.60
  4. Step 4: Simplify right side
    81,110.49x = 5,221,783,373.11
  5. Step 5: Solve for x
    x = 5,221,783,373.11/81,110.49
  6. Step 6: Final answer
    x = 64,378.64

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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.