Finding the Fourth Proportional to 97,782.08, 134,939.20 and 55,339.84
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Solution
The fourth proportional to 97,782.08, 134,939.20 and 55,339.84 is: 76,368.94
Step by Step Solution
- Step 1: Write the proportion equation
97,782.08 : 134,939.20 = 55,339.84 : x - Step 2: Convert to fraction form
97,782.08/134,939.20 = 55,339.84/x - Step 3: Cross multiply
97,782.08x = 134,939.20 × 55,339.84 - Step 4: Simplify right side
97,782.08x = 7,467,513,737.73 - Step 5: Solve for x
x = 7,467,513,737.73/97,782.08 - Step 6: Final answer
x = 76,368.94
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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.