Home / 81,792.81-112,873.95-45,982.89

Finding the Fourth Proportional to 81,792.81, 112,873.95 and 45,982.89

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Solution

The fourth proportional to 81,792.81, 112,873.95 and 45,982.89 is: 63,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,792.81 : 112,873.95 = 45,982.89 : x
  2. Step 2: Convert to fraction form
    81,792.81/112,873.95 = 45,982.89/x
  3. Step 3: Cross multiply
    81,792.81x = 112,873.95 × 45,982.89
  4. Step 4: Simplify right side
    81,792.81x = 5,190,270,426.72
  5. Step 5: Solve for x
    x = 5,190,270,426.72/81,792.81
  6. Step 6: Final answer
    x = 63,456.32

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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.