Finding the Fourth Proportional to 93,690.92, 129,309.79 and 90,576.94
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Solution
The fourth proportional to 93,690.92, 129,309.79 and 90,576.94 is: 125,011.96
Step by Step Solution
- Step 1: Write the proportion equation
93,690.92 : 129,309.79 = 90,576.94 : x - Step 2: Convert to fraction form
93,690.92/129,309.79 = 90,576.94/x - Step 3: Cross multiply
93,690.92x = 129,309.79 × 90,576.94 - Step 4: Simplify right side
93,690.92x = 11,712,485,090.24 - Step 5: Solve for x
x = 11,712,485,090.24/93,690.92 - Step 6: Final answer
x = 125,011.96
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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.