Home / 77,741.02-107,288.06-43,752.78

Finding the Fourth Proportional to 77,741.02, 107,288.06 and 43,752.78

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Solution

The fourth proportional to 77,741.02, 107,288.06 and 43,752.78 is: 60,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,741.02 : 107,288.06 = 43,752.78 : x
  2. Step 2: Convert to fraction form
    77,741.02/107,288.06 = 43,752.78/x
  3. Step 3: Cross multiply
    77,741.02x = 107,288.06 × 43,752.78
  4. Step 4: Simplify right side
    77,741.02x = 4,694,150,885.81
  5. Step 5: Solve for x
    x = 4,694,150,885.81/77,741.02
  6. Step 6: Final answer
    x = 60,381.91

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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.