Home / 85,910.19-128,834.37-29,735.03

Finding the Fourth Proportional to 85,910.19, 128,834.37 and 29,735.03

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Solution

The fourth proportional to 85,910.19, 128,834.37 and 29,735.03 is: 44,591.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,910.19 : 128,834.37 = 29,735.03 : x
  2. Step 2: Convert to fraction form
    85,910.19/128,834.37 = 29,735.03/x
  3. Step 3: Cross multiply
    85,910.19x = 128,834.37 × 29,735.03
  4. Step 4: Simplify right side
    85,910.19x = 3,830,893,212.81
  5. Step 5: Solve for x
    x = 3,830,893,212.81/85,910.19
  6. Step 6: Final answer
    x = 44,591.84

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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.