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Finding the Fourth Proportional to 84,745.28, 116,948.12 and 47,019.54

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Solution

The fourth proportional to 84,745.28, 116,948.12 and 47,019.54 is: 64,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,745.28 : 116,948.12 = 47,019.54 : x
  2. Step 2: Convert to fraction form
    84,745.28/116,948.12 = 47,019.54/x
  3. Step 3: Cross multiply
    84,745.28x = 116,948.12 × 47,019.54
  4. Step 4: Simplify right side
    84,745.28x = 5,498,846,806.26
  5. Step 5: Solve for x
    x = 5,498,846,806.26/84,745.28
  6. Step 6: Final answer
    x = 64,886.76

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1.5x scale

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.