Home / 89,485.75-123,441.73-55,482.76

Finding the Fourth Proportional to 89,485.75, 123,441.73 and 55,482.76

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Solution

The fourth proportional to 89,485.75, 123,441.73 and 55,482.76 is: 76,536.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,485.75 : 123,441.73 = 55,482.76 : x
  2. Step 2: Convert to fraction form
    89,485.75/123,441.73 = 55,482.76/x
  3. Step 3: Cross multiply
    89,485.75x = 123,441.73 × 55,482.76
  4. Step 4: Simplify right side
    89,485.75x = 6,848,887,879.57
  5. Step 5: Solve for x
    x = 6,848,887,879.57/89,485.75
  6. Step 6: Final answer
    x = 76,536.07

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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.