Home / 89,220.96-133,789.05-51,792.51

Finding the Fourth Proportional to 89,220.96, 133,789.05 and 51,792.51

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Solution

The fourth proportional to 89,220.96, 133,789.05 and 51,792.51 is: 77,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,220.96 : 133,789.05 = 51,792.51 : x
  2. Step 2: Convert to fraction form
    89,220.96/133,789.05 = 51,792.51/x
  3. Step 3: Cross multiply
    89,220.96x = 133,789.05 × 51,792.51
  4. Step 4: Simplify right side
    89,220.96x = 6,929,270,041.07
  5. Step 5: Solve for x
    x = 6,929,270,041.07/89,220.96
  6. Step 6: Final answer
    x = 77,664.15

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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.