Finding the Fourth Proportional to 91,058.24, 136,599.84 and 31,070.63
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Solution
The fourth proportional to 91,058.24, 136,599.84 and 31,070.63 is: 46,610.20
Step by Step Solution
- Step 1: Write the proportion equation
91,058.24 : 136,599.84 = 31,070.63 : x - Step 2: Convert to fraction form
91,058.24/136,599.84 = 31,070.63/x - Step 3: Cross multiply
91,058.24x = 136,599.84 × 31,070.63 - Step 4: Simplify right side
91,058.24x = 4,244,242,403.70 - Step 5: Solve for x
x = 4,244,242,403.70/91,058.24 - Step 6: Final answer
x = 46,610.20
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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.