Home / 89,485.12-123,486.32-49,198.58

Finding the Fourth Proportional to 89,485.12, 123,486.32 and 49,198.58

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Solution

The fourth proportional to 89,485.12, 123,486.32 and 49,198.58 is: 67,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,485.12 : 123,486.32 = 49,198.58 : x
  2. Step 2: Convert to fraction form
    89,485.12/123,486.32 = 49,198.58/x
  3. Step 3: Cross multiply
    89,485.12x = 123,486.32 × 49,198.58
  4. Step 4: Simplify right side
    89,485.12x = 6,075,350,730.00
  5. Step 5: Solve for x
    x = 6,075,350,730.00/89,485.12
  6. Step 6: Final answer
    x = 67,892.30

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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.