Home / 77,821.02-107,391.54-47,604.12

Finding the Fourth Proportional to 77,821.02, 107,391.54 and 47,604.12

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Solution

The fourth proportional to 77,821.02, 107,391.54 and 47,604.12 is: 65,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821.02 : 107,391.54 = 47,604.12 : x
  2. Step 2: Convert to fraction form
    77,821.02/107,391.54 = 47,604.12/x
  3. Step 3: Cross multiply
    77,821.02x = 107,391.54 × 47,604.12
  4. Step 4: Simplify right side
    77,821.02x = 5,112,279,757.14
  5. Step 5: Solve for x
    x = 5,112,279,757.14/77,821.02
  6. Step 6: Final answer
    x = 65,692.79

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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.