Home / 81,938.04-122,980.32-41,984.28

Finding the Fourth Proportional to 81,938.04, 122,980.32 and 41,984.28

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Solution

The fourth proportional to 81,938.04, 122,980.32 and 41,984.28 is: 63,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,938.04 : 122,980.32 = 41,984.28 : x
  2. Step 2: Convert to fraction form
    81,938.04/122,980.32 = 41,984.28/x
  3. Step 3: Cross multiply
    81,938.04x = 122,980.32 × 41,984.28
  4. Step 4: Simplify right side
    81,938.04x = 5,163,240,189.37
  5. Step 5: Solve for x
    x = 5,163,240,189.37/81,938.04
  6. Step 6: Final answer
    x = 63,013.96

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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.