Home / 77,621.89-116,338.74-55,097.14

Finding the Fourth Proportional to 77,621.89, 116,338.74 and 55,097.14

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Solution

The fourth proportional to 77,621.89, 116,338.74 and 55,097.14 is: 82,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,621.89 : 116,338.74 = 55,097.14 : x
  2. Step 2: Convert to fraction form
    77,621.89/116,338.74 = 55,097.14/x
  3. Step 3: Cross multiply
    77,621.89x = 116,338.74 × 55,097.14
  4. Step 4: Simplify right side
    77,621.89x = 6,409,931,845.20
  5. Step 5: Solve for x
    x = 6,409,931,845.20/77,621.89
  6. Step 6: Final answer
    x = 82,578.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.