Finding the Fourth Proportional to 74,828.79, 103,263.80 and 41,294.79
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Solution
The fourth proportional to 74,828.79, 103,263.80 and 41,294.79 is: 56,986.85
Step by Step Solution
- Step 1: Write the proportion equation
74,828.79 : 103,263.80 = 41,294.79 : x - Step 2: Convert to fraction form
74,828.79/103,263.80 = 41,294.79/x - Step 3: Cross multiply
74,828.79x = 103,263.80 × 41,294.79 - Step 4: Simplify right side
74,828.79x = 4,264,256,729.13 - Step 5: Solve for x
x = 4,264,256,729.13/74,828.79 - Step 6: Final answer
x = 56,986.85
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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.