Finding the Fourth Proportional to 93,398.49, 128,884.64 and 53,122.05
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Solution
The fourth proportional to 93,398.49, 128,884.64 and 53,122.05 is: 73,305.43
Step by Step Solution
- Step 1: Write the proportion equation
93,398.49 : 128,884.64 = 53,122.05 : x - Step 2: Convert to fraction form
93,398.49/128,884.64 = 53,122.05/x - Step 3: Cross multiply
93,398.49x = 128,884.64 × 53,122.05 - Step 4: Simplify right side
93,398.49x = 6,846,616,024.70 - Step 5: Solve for x
x = 6,846,616,024.70/93,398.49 - Step 6: Final answer
x = 73,305.43
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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.