Finding the Fourth Proportional to 69,801.87, 104,663.02 and 47,642.07
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Solution
The fourth proportional to 69,801.87, 104,663.02 and 47,642.07 is: 71,435.95
Step by Step Solution
- Step 1: Write the proportion equation
69,801.87 : 104,663.02 = 47,642.07 : x - Step 2: Convert to fraction form
69,801.87/104,663.02 = 47,642.07/x - Step 3: Cross multiply
69,801.87x = 104,663.02 × 47,642.07 - Step 4: Simplify right side
69,801.87x = 4,986,362,925.25 - Step 5: Solve for x
x = 4,986,362,925.25/69,801.87 - Step 6: Final answer
x = 71,435.95
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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.