Home / 82,655.12-123,907.08-35,891.12

Finding the Fourth Proportional to 82,655.12, 123,907.08 and 35,891.12

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Solution

The fourth proportional to 82,655.12, 123,907.08 and 35,891.12 is: 53,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,655.12 : 123,907.08 = 35,891.12 : x
  2. Step 2: Convert to fraction form
    82,655.12/123,907.08 = 35,891.12/x
  3. Step 3: Cross multiply
    82,655.12x = 123,907.08 × 35,891.12
  4. Step 4: Simplify right side
    82,655.12x = 4,447,163,877.13
  5. Step 5: Solve for x
    x = 4,447,163,877.13/82,655.12
  6. Step 6: Final answer
    x = 53,803.85

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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.