Home / 79,448.04-109,615.68-55,258.20

Finding the Fourth Proportional to 79,448.04, 109,615.68 and 55,258.20

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Solution

The fourth proportional to 79,448.04, 109,615.68 and 55,258.20 is: 76,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,448.04 : 109,615.68 = 55,258.20 : x
  2. Step 2: Convert to fraction form
    79,448.04/109,615.68 = 55,258.20/x
  3. Step 3: Cross multiply
    79,448.04x = 109,615.68 × 55,258.20
  4. Step 4: Simplify right side
    79,448.04x = 6,057,165,168.58
  5. Step 5: Solve for x
    x = 6,057,165,168.58/79,448.04
  6. Step 6: Final answer
    x = 76,240.59

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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.