Home / 85,735.19-128,513.49-35,844.26

Finding the Fourth Proportional to 85,735.19, 128,513.49 and 35,844.26

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Solution

The fourth proportional to 85,735.19, 128,513.49 and 35,844.26 is: 53,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,735.19 : 128,513.49 = 35,844.26 : x
  2. Step 2: Convert to fraction form
    85,735.19/128,513.49 = 35,844.26/x
  3. Step 3: Cross multiply
    85,735.19x = 128,513.49 × 35,844.26
  4. Step 4: Simplify right side
    85,735.19x = 4,606,470,172.08
  5. Step 5: Solve for x
    x = 4,606,470,172.08/85,735.19
  6. Step 6: Final answer
    x = 53,729.05

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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.