Finding the Fourth Proportional to 99,048.53, 136,686.16 and 53,726.40
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Solution
The fourth proportional to 99,048.53, 136,686.16 and 53,726.40 is: 74,141.99
Step by Step Solution
- Step 1: Write the proportion equation
99,048.53 : 136,686.16 = 53,726.40 : x - Step 2: Convert to fraction form
99,048.53/136,686.16 = 53,726.40/x - Step 3: Cross multiply
99,048.53x = 136,686.16 × 53,726.40 - Step 4: Simplify right side
99,048.53x = 7,343,654,861.21 - Step 5: Solve for x
x = 7,343,654,861.21/99,048.53 - Step 6: Final answer
x = 74,141.99
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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.