Finding the Fourth Proportional to 84,703.51, 117,028.14 and 72,089.99
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Solution
The fourth proportional to 84,703.51, 117,028.14 and 72,089.99 is: 99,601.04
Step by Step Solution
- Step 1: Write the proportion equation
84,703.51 : 117,028.14 = 72,089.99 : x - Step 2: Convert to fraction form
84,703.51/117,028.14 = 72,089.99/x - Step 3: Cross multiply
84,703.51x = 117,028.14 × 72,089.99 - Step 4: Simplify right side
84,703.51x = 8,436,557,442.32 - Step 5: Solve for x
x = 8,436,557,442.32/84,703.51 - Step 6: Final answer
x = 99,601.04
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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.