Home / 71,173.07-98,218.85-38,907.83

Finding the Fourth Proportional to 71,173.07, 98,218.85 and 38,907.83

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Solution

The fourth proportional to 71,173.07, 98,218.85 and 38,907.83 is: 53,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,173.07 : 98,218.85 = 38,907.83 : x
  2. Step 2: Convert to fraction form
    71,173.07/98,218.85 = 38,907.83/x
  3. Step 3: Cross multiply
    71,173.07x = 98,218.85 × 38,907.83
  4. Step 4: Simplify right side
    71,173.07x = 3,821,481,827.50
  5. Step 5: Solve for x
    x = 3,821,481,827.50/71,173.07
  6. Step 6: Final answer
    x = 53,692.81

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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.