Home / 77,676.39-116,398.62-40,186.35

Finding the Fourth Proportional to 77,676.39, 116,398.62 and 40,186.35

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Solution

The fourth proportional to 77,676.39, 116,398.62 and 40,186.35 is: 60,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,676.39 : 116,398.62 = 40,186.35 : x
  2. Step 2: Convert to fraction form
    77,676.39/116,398.62 = 40,186.35/x
  3. Step 3: Cross multiply
    77,676.39x = 116,398.62 × 40,186.35
  4. Step 4: Simplify right side
    77,676.39x = 4,677,635,682.84
  5. Step 5: Solve for x
    x = 4,677,635,682.84/77,676.39
  6. Step 6: Final answer
    x = 60,219.53

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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.