Home / 77,289.12-106,655.94-43,755.12

Finding the Fourth Proportional to 77,289.12, 106,655.94 and 43,755.12

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Solution

The fourth proportional to 77,289.12, 106,655.94 and 43,755.12 is: 60,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,289.12 : 106,655.94 = 43,755.12 : x
  2. Step 2: Convert to fraction form
    77,289.12/106,655.94 = 43,755.12/x
  3. Step 3: Cross multiply
    77,289.12x = 106,655.94 × 43,755.12
  4. Step 4: Simplify right side
    77,289.12x = 4,666,743,453.41
  5. Step 5: Solve for x
    x = 4,666,743,453.41/77,289.12
  6. Step 6: Final answer
    x = 60,380.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.