Finding the Fourth Proportional to 74,590.80, 112,294.50 and 68,058.96
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Solution
The fourth proportional to 74,590.80, 112,294.50 and 68,058.96 is: 102,460.99
Step by Step Solution
- Step 1: Write the proportion equation
74,590.80 : 112,294.50 = 68,058.96 : x - Step 2: Convert to fraction form
74,590.80/112,294.50 = 68,058.96/x - Step 3: Cross multiply
74,590.80x = 112,294.50 × 68,058.96 - Step 4: Simplify right side
74,590.80x = 7,642,646,883.72 - Step 5: Solve for x
x = 7,642,646,883.72/74,590.80 - Step 6: Final answer
x = 102,460.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.