Home / 77,782.60-116,676.30-30,395.68

Finding the Fourth Proportional to 77,782.60, 116,676.30 and 30,395.68

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Solution

The fourth proportional to 77,782.60, 116,676.30 and 30,395.68 is: 45,594.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,782.60 : 116,676.30 = 30,395.68 : x
  2. Step 2: Convert to fraction form
    77,782.60/116,676.30 = 30,395.68/x
  3. Step 3: Cross multiply
    77,782.60x = 116,676.30 × 30,395.68
  4. Step 4: Simplify right side
    77,782.60x = 3,546,455,478.38
  5. Step 5: Solve for x
    x = 3,546,455,478.38/77,782.60
  6. Step 6: Final answer
    x = 45,594.46

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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.