Finding the Fourth Proportional to 74,561.06, 102,894.71 and 40,569.79
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Solution
The fourth proportional to 74,561.06, 102,894.71 and 40,569.79 is: 55,986.55
Step by Step Solution
- Step 1: Write the proportion equation
74,561.06 : 102,894.71 = 40,569.79 : x - Step 2: Convert to fraction form
74,561.06/102,894.71 = 40,569.79/x - Step 3: Cross multiply
74,561.06x = 102,894.71 × 40,569.79 - Step 4: Simplify right side
74,561.06x = 4,174,416,776.81 - Step 5: Solve for x
x = 4,174,416,776.81/74,561.06 - Step 6: Final answer
x = 55,986.55
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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.