Home / 70,312.24-105,465.60-25,919.80

Finding the Fourth Proportional to 70,312.24, 105,465.60 and 25,919.80

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Solution

The fourth proportional to 70,312.24, 105,465.60 and 25,919.80 is: 38,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,312.24 : 105,465.60 = 25,919.80 : x
  2. Step 2: Convert to fraction form
    70,312.24/105,465.60 = 25,919.80/x
  3. Step 3: Cross multiply
    70,312.24x = 105,465.60 × 25,919.80
  4. Step 4: Simplify right side
    70,312.24x = 2,733,647,258.88
  5. Step 5: Solve for x
    x = 2,733,647,258.88/70,312.24
  6. Step 6: Final answer
    x = 38,878.68

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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.