Home / 79,089.21-109,145.88-45,103.23

Finding the Fourth Proportional to 79,089.21, 109,145.88 and 45,103.23

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Solution

The fourth proportional to 79,089.21, 109,145.88 and 45,103.23 is: 62,244.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,089.21 : 109,145.88 = 45,103.23 : x
  2. Step 2: Convert to fraction form
    79,089.21/109,145.88 = 45,103.23/x
  3. Step 3: Cross multiply
    79,089.21x = 109,145.88 × 45,103.23
  4. Step 4: Simplify right side
    79,089.21x = 4,922,831,729.19
  5. Step 5: Solve for x
    x = 4,922,831,729.19/79,089.21
  6. Step 6: Final answer
    x = 62,244.04

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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.