Home / 86,441.79-129,709.14-83,296.37

Finding the Fourth Proportional to 86,441.79, 129,709.14 and 83,296.37

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Solution

The fourth proportional to 86,441.79, 129,709.14 and 83,296.37 is: 124,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,441.79 : 129,709.14 = 83,296.37 : x
  2. Step 2: Convert to fraction form
    86,441.79/129,709.14 = 83,296.37/x
  3. Step 3: Cross multiply
    86,441.79x = 129,709.14 × 83,296.37
  4. Step 4: Simplify right side
    86,441.79x = 10,804,299,869.28
  5. Step 5: Solve for x
    x = 10,804,299,869.28/86,441.79
  6. Step 6: Final answer
    x = 124,989.31

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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.