Home / 96,912.51-145,220.75-40,721.90

Finding the Fourth Proportional to 96,912.51, 145,220.75 and 40,721.90

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Solution

The fourth proportional to 96,912.51, 145,220.75 and 40,721.90 is: 61,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,912.51 : 145,220.75 = 40,721.90 : x
  2. Step 2: Convert to fraction form
    96,912.51/145,220.75 = 40,721.90/x
  3. Step 3: Cross multiply
    96,912.51x = 145,220.75 × 40,721.90
  4. Step 4: Simplify right side
    96,912.51x = 5,913,664,859.43
  5. Step 5: Solve for x
    x = 5,913,664,859.43/96,912.51
  6. Step 6: Final answer
    x = 61,020.66

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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.