Finding the Fourth Proportional to 74,346.79, 102,598.65 and 40,355.28
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Solution
The fourth proportional to 74,346.79, 102,598.65 and 40,355.28 is: 55,690.33
Step by Step Solution
- Step 1: Write the proportion equation
74,346.79 : 102,598.65 = 40,355.28 : x - Step 2: Convert to fraction form
74,346.79/102,598.65 = 40,355.28/x - Step 3: Cross multiply
74,346.79x = 102,598.65 × 40,355.28 - Step 4: Simplify right side
74,346.79x = 4,140,397,248.37 - Step 5: Solve for x
x = 4,140,397,248.37/74,346.79 - Step 6: Final answer
x = 55,690.33
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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.