Home / 85,021.20-117,330.24-48,721.93

Finding the Fourth Proportional to 85,021.20, 117,330.24 and 48,721.93

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Solution

The fourth proportional to 85,021.20, 117,330.24 and 48,721.93 is: 67,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,021.20 : 117,330.24 = 48,721.93 : x
  2. Step 2: Convert to fraction form
    85,021.20/117,330.24 = 48,721.93/x
  3. Step 3: Cross multiply
    85,021.20x = 117,330.24 × 48,721.93
  4. Step 4: Simplify right side
    85,021.20x = 5,716,555,153.51
  5. Step 5: Solve for x
    x = 5,716,555,153.51/85,021.20
  6. Step 6: Final answer
    x = 67,236.82

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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.