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Finding the Fourth Proportional to 101,785.69, 152,679.51 and 38,588.81

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Solution

The fourth proportional to 101,785.69, 152,679.51 and 38,588.81 is: 57,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,785.69 : 152,679.51 = 38,588.81 : x
  2. Step 2: Convert to fraction form
    101,785.69/152,679.51 = 38,588.81/x
  3. Step 3: Cross multiply
    101,785.69x = 152,679.51 × 38,588.81
  4. Step 4: Simplify right side
    101,785.69x = 5,891,720,983.98
  5. Step 5: Solve for x
    x = 5,891,720,983.98/101,785.69
  6. Step 6: Final answer
    x = 57,883.59

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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.