Home / 89,555.50-123,586.59-49,268.40

Finding the Fourth Proportional to 89,555.50, 123,586.59 and 49,268.40

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Solution

The fourth proportional to 89,555.50, 123,586.59 and 49,268.40 is: 67,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,555.50 : 123,586.59 = 49,268.40 : x
  2. Step 2: Convert to fraction form
    89,555.50/123,586.59 = 49,268.40/x
  3. Step 3: Cross multiply
    89,555.50x = 123,586.59 × 49,268.40
  4. Step 4: Simplify right side
    89,555.50x = 6,088,912,809.65
  5. Step 5: Solve for x
    x = 6,088,912,809.65/89,555.50
  6. Step 6: Final answer
    x = 67,990.38

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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.