Home / 77,767.41-107,317.80-43,775.81

Finding the Fourth Proportional to 77,767.41, 107,317.80 and 43,775.81

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Solution

The fourth proportional to 77,767.41, 107,317.80 and 43,775.81 is: 60,409.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,767.41 : 107,317.80 = 43,775.81 : x
  2. Step 2: Convert to fraction form
    77,767.41/107,317.80 = 43,775.81/x
  3. Step 3: Cross multiply
    77,767.41x = 107,317.80 × 43,775.81
  4. Step 4: Simplify right side
    77,767.41x = 4,697,923,085.83
  5. Step 5: Solve for x
    x = 4,697,923,085.83/77,767.41
  6. Step 6: Final answer
    x = 60,409.92

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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.