Finding the Fourth Proportional to 74,194.08, 102,386.28 and 53,009.32
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Solution
The fourth proportional to 74,194.08, 102,386.28 and 53,009.32 is: 73,151.75
Step by Step Solution
- Step 1: Write the proportion equation
74,194.08 : 102,386.28 = 53,009.32 : x - Step 2: Convert to fraction form
74,194.08/102,386.28 = 53,009.32/x - Step 3: Cross multiply
74,194.08x = 102,386.28 × 53,009.32 - Step 4: Simplify right side
74,194.08x = 5,427,427,080.13 - Step 5: Solve for x
x = 5,427,427,080.13/74,194.08 - Step 6: Final answer
x = 73,151.75
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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.