Home / 82,678.49-114,152.67-55,495.35

Finding the Fourth Proportional to 82,678.49, 114,152.67 and 55,495.35

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Solution

The fourth proportional to 82,678.49, 114,152.67 and 55,495.35 is: 76,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,678.49 : 114,152.67 = 55,495.35 : x
  2. Step 2: Convert to fraction form
    82,678.49/114,152.67 = 55,495.35/x
  3. Step 3: Cross multiply
    82,678.49x = 114,152.67 × 55,495.35
  4. Step 4: Simplify right side
    82,678.49x = 6,334,942,375.08
  5. Step 5: Solve for x
    x = 6,334,942,375.08/82,678.49
  6. Step 6: Final answer
    x = 76,621.41

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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.