Finding the Fourth Proportional to 98,513.24, 135,953.52 and 56,085.44
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Solution
The fourth proportional to 98,513.24, 135,953.52 and 56,085.44 is: 77,400.90
Step by Step Solution
- Step 1: Write the proportion equation
98,513.24 : 135,953.52 = 56,085.44 : x - Step 2: Convert to fraction form
98,513.24/135,953.52 = 56,085.44/x - Step 3: Cross multiply
98,513.24x = 135,953.52 × 56,085.44 - Step 4: Simplify right side
98,513.24x = 7,625,012,988.75 - Step 5: Solve for x
x = 7,625,012,988.75/98,513.24 - Step 6: Final answer
x = 77,400.90
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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.