Home / 82,720.84-114,123.83-48,708.54

Finding the Fourth Proportional to 82,720.84, 114,123.83 and 48,708.54

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Solution

The fourth proportional to 82,720.84, 114,123.83 and 48,708.54 is: 67,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,720.84 : 114,123.83 = 48,708.54 : x
  2. Step 2: Convert to fraction form
    82,720.84/114,123.83 = 48,708.54/x
  3. Step 3: Cross multiply
    82,720.84x = 114,123.83 × 48,708.54
  4. Step 4: Simplify right side
    82,720.84x = 5,558,805,138.51
  5. Step 5: Solve for x
    x = 5,558,805,138.51/82,720.84
  6. Step 6: Final answer
    x = 67,199.57

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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.