Home / 75,271.57-112,907.40-19,115.89

Finding the Fourth Proportional to 75,271.57, 112,907.40 and 19,115.89

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Solution

The fourth proportional to 75,271.57, 112,907.40 and 19,115.89 is: 28,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,271.57 : 112,907.40 = 19,115.89 : x
  2. Step 2: Convert to fraction form
    75,271.57/112,907.40 = 19,115.89/x
  3. Step 3: Cross multiply
    75,271.57x = 112,907.40 × 19,115.89
  4. Step 4: Simplify right side
    75,271.57x = 2,158,325,438.59
  5. Step 5: Solve for x
    x = 2,158,325,438.59/75,271.57
  6. Step 6: Final answer
    x = 28,673.85

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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.