Finding the Fourth Proportional to 75,696.78, 104,461.88 and 43,432.68
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Solution
The fourth proportional to 75,696.78, 104,461.88 and 43,432.68 is: 59,937.28
Step by Step Solution
- Step 1: Write the proportion equation
75,696.78 : 104,461.88 = 43,432.68 : x - Step 2: Convert to fraction form
75,696.78/104,461.88 = 43,432.68/x - Step 3: Cross multiply
75,696.78x = 104,461.88 × 43,432.68 - Step 4: Simplify right side
75,696.78x = 4,537,059,189.08 - Step 5: Solve for x
x = 4,537,059,189.08/75,696.78 - Step 6: Final answer
x = 59,937.28
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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.