Finding the Fourth Proportional to 99,693.99, 137,577.02 and 54,981.99
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Solution
The fourth proportional to 99,693.99, 137,577.02 and 54,981.99 is: 75,874.76
Step by Step Solution
- Step 1: Write the proportion equation
99,693.99 : 137,577.02 = 54,981.99 : x - Step 2: Convert to fraction form
99,693.99/137,577.02 = 54,981.99/x - Step 3: Cross multiply
99,693.99x = 137,577.02 × 54,981.99 - Step 4: Simplify right side
99,693.99x = 7,564,258,062.96 - Step 5: Solve for x
x = 7,564,258,062.96/99,693.99 - Step 6: Final answer
x = 75,874.76
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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.