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Finding the Fourth Proportional to 73,018.89, 100,782.29 and 47,480.81

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Solution

The fourth proportional to 73,018.89, 100,782.29 and 47,480.81 is: 65,534.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,018.89 : 100,782.29 = 47,480.81 : x
  2. Step 2: Convert to fraction form
    73,018.89/100,782.29 = 47,480.81/x
  3. Step 3: Cross multiply
    73,018.89x = 100,782.29 × 47,480.81
  4. Step 4: Simplify right side
    73,018.89x = 4,785,224,377.65
  5. Step 5: Solve for x
    x = 4,785,224,377.65/73,018.89
  6. Step 6: Final answer
    x = 65,534.06

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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.