Finding the Fourth Proportional to 74,349.42, 102,599.91 and 40,356.30
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Solution
The fourth proportional to 74,349.42, 102,599.91 and 40,356.30 is: 55,690.45
Step by Step Solution
- Step 1: Write the proportion equation
74,349.42 : 102,599.91 = 40,356.30 : x - Step 2: Convert to fraction form
74,349.42/102,599.91 = 40,356.30/x - Step 3: Cross multiply
74,349.42x = 102,599.91 × 40,356.30 - Step 4: Simplify right side
74,349.42x = 4,140,552,747.93 - Step 5: Solve for x
x = 4,140,552,747.93/74,349.42 - Step 6: Final answer
x = 55,690.45
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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.