Finding the Fourth Proportional to 68,718.04, 102,979.86 and 29,235.40
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Solution
The fourth proportional to 68,718.04, 102,979.86 and 29,235.40 is: 43,811.75
Step by Step Solution
- Step 1: Write the proportion equation
68,718.04 : 102,979.86 = 29,235.40 : x - Step 2: Convert to fraction form
68,718.04/102,979.86 = 29,235.40/x - Step 3: Cross multiply
68,718.04x = 102,979.86 × 29,235.40 - Step 4: Simplify right side
68,718.04x = 3,010,657,399.04 - Step 5: Solve for x
x = 3,010,657,399.04/68,718.04 - Step 6: Final answer
x = 43,811.75
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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.