Finding the Fourth Proportional to 69,724.09, 104,585.99 and 19,804.70
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Solution
The fourth proportional to 69,724.09, 104,585.99 and 19,804.70 is: 29,707.01
Step by Step Solution
- Step 1: Write the proportion equation
69,724.09 : 104,585.99 = 19,804.70 : x - Step 2: Convert to fraction form
69,724.09/104,585.99 = 19,804.70/x - Step 3: Cross multiply
69,724.09x = 104,585.99 × 19,804.70 - Step 4: Simplify right side
69,724.09x = 2,071,294,318.59 - Step 5: Solve for x
x = 2,071,294,318.59/69,724.09 - Step 6: Final answer
x = 29,707.01
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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.