Finding the Fourth Proportional to 77,072.08, 115,538.06 and 29,656.92
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Solution
The fourth proportional to 77,072.08, 115,538.06 and 29,656.92 is: 44,458.42
Step by Step Solution
- Step 1: Write the proportion equation
77,072.08 : 115,538.06 = 29,656.92 : x - Step 2: Convert to fraction form
77,072.08/115,538.06 = 29,656.92/x - Step 3: Cross multiply
77,072.08x = 115,538.06 × 29,656.92 - Step 4: Simplify right side
77,072.08x = 3,426,502,854.09 - Step 5: Solve for x
x = 3,426,502,854.09/77,072.08 - Step 6: Final answer
x = 44,458.42
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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.