Home / 85,249.95-117,642.36-47,009.48

Finding the Fourth Proportional to 85,249.95, 117,642.36 and 47,009.48

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Solution

The fourth proportional to 85,249.95, 117,642.36 and 47,009.48 is: 64,871.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,249.95 : 117,642.36 = 47,009.48 : x
  2. Step 2: Convert to fraction form
    85,249.95/117,642.36 = 47,009.48/x
  3. Step 3: Cross multiply
    85,249.95x = 117,642.36 × 47,009.48
  4. Step 4: Simplify right side
    85,249.95x = 5,530,306,463.68
  5. Step 5: Solve for x
    x = 5,530,306,463.68/85,249.95
  6. Step 6: Final answer
    x = 64,871.67

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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.