Finding the Fourth Proportional to 74,456.90, 102,750.93 and 40,465.70
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Solution
The fourth proportional to 74,456.90, 102,750.93 and 40,465.70 is: 55,842.89
Step by Step Solution
- Step 1: Write the proportion equation
74,456.90 : 102,750.93 = 40,465.70 : x - Step 2: Convert to fraction form
74,456.90/102,750.93 = 40,465.70/x - Step 3: Cross multiply
74,456.90x = 102,750.93 × 40,465.70 - Step 4: Simplify right side
74,456.90x = 4,157,888,308.10 - Step 5: Solve for x
x = 4,157,888,308.10/74,456.90 - Step 6: Final answer
x = 55,842.89
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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.