Home / 77,899.32-116,765.60-55,645.22

Finding the Fourth Proportional to 77,899.32, 116,765.60 and 55,645.22

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Solution

The fourth proportional to 77,899.32, 116,765.60 and 55,645.22 is: 83,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,899.32 : 116,765.60 = 55,645.22 : x
  2. Step 2: Convert to fraction form
    77,899.32/116,765.60 = 55,645.22/x
  3. Step 3: Cross multiply
    77,899.32x = 116,765.60 × 55,645.22
  4. Step 4: Simplify right side
    77,899.32x = 6,497,447,514.12
  5. Step 5: Solve for x
    x = 6,497,447,514.12/77,899.32
  6. Step 6: Final answer
    x = 83,408.27

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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.