Home / 77,142.22-115,671.72-34,999.30

Finding the Fourth Proportional to 77,142.22, 115,671.72 and 34,999.30

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Solution

The fourth proportional to 77,142.22, 115,671.72 and 34,999.30 is: 52,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,142.22 : 115,671.72 = 34,999.30 : x
  2. Step 2: Convert to fraction form
    77,142.22/115,671.72 = 34,999.30/x
  3. Step 3: Cross multiply
    77,142.22x = 115,671.72 × 34,999.30
  4. Step 4: Simplify right side
    77,142.22x = 4,048,429,308.76
  5. Step 5: Solve for x
    x = 4,048,429,308.76/77,142.22
  6. Step 6: Final answer
    x = 52,480.07

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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.