Home / 79,448.20-109,639.23-43,639.01

Finding the Fourth Proportional to 79,448.20, 109,639.23 and 43,639.01

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Solution

The fourth proportional to 79,448.20, 109,639.23 and 43,639.01 is: 60,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,448.20 : 109,639.23 = 43,639.01 : x
  2. Step 2: Convert to fraction form
    79,448.20/109,639.23 = 43,639.01/x
  3. Step 3: Cross multiply
    79,448.20x = 109,639.23 × 43,639.01
  4. Step 4: Simplify right side
    79,448.20x = 4,784,547,454.36
  5. Step 5: Solve for x
    x = 4,784,547,454.36/79,448.20
  6. Step 6: Final answer
    x = 60,222.23

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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.