Home / 86,111.40-129,176.52-29,226.37

Finding the Fourth Proportional to 86,111.40, 129,176.52 and 29,226.37

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Solution

The fourth proportional to 86,111.40, 129,176.52 and 29,226.37 is: 43,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,111.40 : 129,176.52 = 29,226.37 : x
  2. Step 2: Convert to fraction form
    86,111.40/129,176.52 = 29,226.37/x
  3. Step 3: Cross multiply
    86,111.40x = 129,176.52 × 29,226.37
  4. Step 4: Simplify right side
    86,111.40x = 3,775,360,768.83
  5. Step 5: Solve for x
    x = 3,775,360,768.83/86,111.40
  6. Step 6: Final answer
    x = 43,842.75

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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.