Home / 85,795.40-128,619.29-41,453.07

Finding the Fourth Proportional to 85,795.40, 128,619.29 and 41,453.07

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Solution

The fourth proportional to 85,795.40, 128,619.29 and 41,453.07 is: 62,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,795.40 : 128,619.29 = 41,453.07 : x
  2. Step 2: Convert to fraction form
    85,795.40/128,619.29 = 41,453.07/x
  3. Step 3: Cross multiply
    85,795.40x = 128,619.29 × 41,453.07
  4. Step 4: Simplify right side
    85,795.40x = 5,331,664,053.03
  5. Step 5: Solve for x
    x = 5,331,664,053.03/85,795.40
  6. Step 6: Final answer
    x = 62,143.94

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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.