Home / 79,161.03-109,245.15-45,175.05

Finding the Fourth Proportional to 79,161.03, 109,245.15 and 45,175.05

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Solution

The fourth proportional to 79,161.03, 109,245.15 and 45,175.05 is: 62,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,161.03 : 109,245.15 = 45,175.05 : x
  2. Step 2: Convert to fraction form
    79,161.03/109,245.15 = 45,175.05/x
  3. Step 3: Cross multiply
    79,161.03x = 109,245.15 × 45,175.05
  4. Step 4: Simplify right side
    79,161.03x = 4,935,155,113.51
  5. Step 5: Solve for x
    x = 4,935,155,113.51/79,161.03
  6. Step 6: Final answer
    x = 62,343.24

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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.