Finding the Fourth Proportional to 93,537.63, 128,983.73 and 61,665.75
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Solution
The fourth proportional to 93,537.63, 128,983.73 and 61,665.75 is: 85,033.99
Step by Step Solution
- Step 1: Write the proportion equation
93,537.63 : 128,983.73 = 61,665.75 : x - Step 2: Convert to fraction form
93,537.63/128,983.73 = 61,665.75/x - Step 3: Cross multiply
93,537.63x = 128,983.73 × 61,665.75 - Step 4: Simplify right side
93,537.63x = 7,953,878,139.92 - Step 5: Solve for x
x = 7,953,878,139.92/93,537.63 - Step 6: Final answer
x = 85,033.99
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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.