Home / 75,271.19-112,906.83-19,115.51

Finding the Fourth Proportional to 75,271.19, 112,906.83 and 19,115.51

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Solution

The fourth proportional to 75,271.19, 112,906.83 and 19,115.51 is: 28,673.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,271.19 : 112,906.83 = 19,115.51 : x
  2. Step 2: Convert to fraction form
    75,271.19/112,906.83 = 19,115.51/x
  3. Step 3: Cross multiply
    75,271.19x = 112,906.83 × 19,115.51
  4. Step 4: Simplify right side
    75,271.19x = 2,158,271,073.40
  5. Step 5: Solve for x
    x = 2,158,271,073.40/75,271.19
  6. Step 6: Final answer
    x = 28,673.27

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1.5x scale

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.