Finding the Fourth Proportional to 74,656.98, 103,023.68 and 40,664.93
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Solution
The fourth proportional to 74,656.98, 103,023.68 and 40,664.93 is: 56,115.99
Step by Step Solution
- Step 1: Write the proportion equation
74,656.98 : 103,023.68 = 40,664.93 : x - Step 2: Convert to fraction form
74,656.98/103,023.68 = 40,664.93/x - Step 3: Cross multiply
74,656.98x = 103,023.68 × 40,664.93 - Step 4: Simplify right side
74,656.98x = 4,189,450,017.10 - Step 5: Solve for x
x = 4,189,450,017.10/74,656.98 - Step 6: Final answer
x = 56,115.99
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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.