Home / 71,882.12-99,191.58-43,603.40

Finding the Fourth Proportional to 71,882.12, 99,191.58 and 43,603.40

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Solution

The fourth proportional to 71,882.12, 99,191.58 and 43,603.40 is: 60,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,882.12 : 99,191.58 = 43,603.40 : x
  2. Step 2: Convert to fraction form
    71,882.12/99,191.58 = 43,603.40/x
  3. Step 3: Cross multiply
    71,882.12x = 99,191.58 × 43,603.40
  4. Step 4: Simplify right side
    71,882.12x = 4,325,090,139.37
  5. Step 5: Solve for x
    x = 4,325,090,139.37/71,882.12
  6. Step 6: Final answer
    x = 60,169.21

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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.