Finding the Fourth Proportional to 98,956.80, 148,378.96 and 38,952.75
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Solution
The fourth proportional to 98,956.80, 148,378.96 and 38,952.75 is: 58,406.99
Step by Step Solution
- Step 1: Write the proportion equation
98,956.80 : 148,378.96 = 38,952.75 : x - Step 2: Convert to fraction form
98,956.80/148,378.96 = 38,952.75/x - Step 3: Cross multiply
98,956.80x = 148,378.96 × 38,952.75 - Step 4: Simplify right side
98,956.80x = 5,779,768,534.14 - Step 5: Solve for x
x = 5,779,768,534.14/98,956.80 - Step 6: Final answer
x = 58,406.99
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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.