Home / 86,355.72-129,415.32-44,147.43

Finding the Fourth Proportional to 86,355.72, 129,415.32 and 44,147.43

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Solution

The fourth proportional to 86,355.72, 129,415.32 and 44,147.43 is: 66,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,355.72 : 129,415.32 = 44,147.43 : x
  2. Step 2: Convert to fraction form
    86,355.72/129,415.32 = 44,147.43/x
  3. Step 3: Cross multiply
    86,355.72x = 129,415.32 × 44,147.43
  4. Step 4: Simplify right side
    86,355.72x = 5,713,353,780.63
  5. Step 5: Solve for x
    x = 5,713,353,780.63/86,355.72
  6. Step 6: Final answer
    x = 66,160.69

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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.