Home / 86,264.43-118,408.89-76,622.19

Finding the Fourth Proportional to 86,264.43, 118,408.89 and 76,622.19

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Solution

The fourth proportional to 86,264.43, 118,408.89 and 76,622.19 is: 105,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,264.43 : 118,408.89 = 76,622.19 : x
  2. Step 2: Convert to fraction form
    86,264.43/118,408.89 = 76,622.19/x
  3. Step 3: Cross multiply
    86,264.43x = 118,408.89 × 76,622.19
  4. Step 4: Simplify right side
    86,264.43x = 9,072,748,467.27
  5. Step 5: Solve for x
    x = 9,072,748,467.27/86,264.43
  6. Step 6: Final answer
    x = 105,173.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.