Home / 77,760.98-107,313.56-43,771.66

Finding the Fourth Proportional to 77,760.98, 107,313.56 and 43,771.66

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Solution

The fourth proportional to 77,760.98, 107,313.56 and 43,771.66 is: 60,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,760.98 : 107,313.56 = 43,771.66 : x
  2. Step 2: Convert to fraction form
    77,760.98/107,313.56 = 43,771.66/x
  3. Step 3: Cross multiply
    77,760.98x = 107,313.56 × 43,771.66
  4. Step 4: Simplify right side
    77,760.98x = 4,697,292,661.71
  5. Step 5: Solve for x
    x = 4,697,292,661.71/77,760.98
  6. Step 6: Final answer
    x = 60,406.81

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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.