Finding the Fourth Proportional to 70,703.62, 106,055.43 and 29,149.54
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Solution
The fourth proportional to 70,703.62, 106,055.43 and 29,149.54 is: 43,724.31
Step by Step Solution
- Step 1: Write the proportion equation
70,703.62 : 106,055.43 = 29,149.54 : x - Step 2: Convert to fraction form
70,703.62/106,055.43 = 29,149.54/x - Step 3: Cross multiply
70,703.62x = 106,055.43 × 29,149.54 - Step 4: Simplify right side
70,703.62x = 3,091,466,999.00 - Step 5: Solve for x
x = 3,091,466,999.00/70,703.62 - Step 6: Final answer
x = 43,724.31
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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.