Finding the Fourth Proportional to 74,971.71, 103,393.95 and 62,204.68
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Solution
The fourth proportional to 74,971.71, 103,393.95 and 62,204.68 is: 85,786.86
Step by Step Solution
- Step 1: Write the proportion equation
74,971.71 : 103,393.95 = 62,204.68 : x - Step 2: Convert to fraction form
74,971.71/103,393.95 = 62,204.68/x - Step 3: Cross multiply
74,971.71x = 103,393.95 × 62,204.68 - Step 4: Simplify right side
74,971.71x = 6,431,587,004.18 - Step 5: Solve for x
x = 6,431,587,004.18/74,971.71 - Step 6: Final answer
x = 85,786.86
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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.