Home / 77,314.60-115,971.90-52,738.60

Finding the Fourth Proportional to 77,314.60, 115,971.90 and 52,738.60

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Solution

The fourth proportional to 77,314.60, 115,971.90 and 52,738.60 is: 79,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,314.60 : 115,971.90 = 52,738.60 : x
  2. Step 2: Convert to fraction form
    77,314.60/115,971.90 = 52,738.60/x
  3. Step 3: Cross multiply
    77,314.60x = 115,971.90 × 52,738.60
  4. Step 4: Simplify right side
    77,314.60x = 6,116,195,645.34
  5. Step 5: Solve for x
    x = 6,116,195,645.34/77,314.60
  6. Step 6: Final answer
    x = 79,107.90

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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.