Finding the Fourth Proportional to 98,913.04, 136,513.92 and 56,474.08
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Solution
The fourth proportional to 98,913.04, 136,513.92 and 56,474.08 is: 77,942.18
Step by Step Solution
- Step 1: Write the proportion equation
98,913.04 : 136,513.92 = 56,474.08 : x - Step 2: Convert to fraction form
98,913.04/136,513.92 = 56,474.08/x - Step 3: Cross multiply
98,913.04x = 136,513.92 × 56,474.08 - Step 4: Simplify right side
98,913.04x = 7,709,498,039.19 - Step 5: Solve for x
x = 7,709,498,039.19/98,913.04 - Step 6: Final answer
x = 77,942.18
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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.