Home / 72,286.75-108,417.06-19,683.93

Finding the Fourth Proportional to 72,286.75, 108,417.06 and 19,683.93

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Solution

The fourth proportional to 72,286.75, 108,417.06 and 19,683.93 is: 29,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,286.75 : 108,417.06 = 19,683.93 : x
  2. Step 2: Convert to fraction form
    72,286.75/108,417.06 = 19,683.93/x
  3. Step 3: Cross multiply
    72,286.75x = 108,417.06 × 19,683.93
  4. Step 4: Simplify right side
    72,286.75x = 2,134,073,819.85
  5. Step 5: Solve for x
    x = 2,134,073,819.85/72,286.75
  6. Step 6: Final answer
    x = 29,522.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.