Home / 80,421.40-111,052.04-50,258.24

Finding the Fourth Proportional to 80,421.40, 111,052.04 and 50,258.24

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Solution

The fourth proportional to 80,421.40, 111,052.04 and 50,258.24 is: 69,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,421.40 : 111,052.04 = 50,258.24 : x
  2. Step 2: Convert to fraction form
    80,421.40/111,052.04 = 50,258.24/x
  3. Step 3: Cross multiply
    80,421.40x = 111,052.04 × 50,258.24
  4. Step 4: Simplify right side
    80,421.40x = 5,581,280,078.81
  5. Step 5: Solve for x
    x = 5,581,280,078.81/80,421.40
  6. Step 6: Final answer
    x = 69,400.43

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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.