Finding the Fourth Proportional to 93,481.05, 129,008.79 and 51,039.75
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Solution
The fourth proportional to 93,481.05, 129,008.79 and 51,039.75 is: 70,437.55
Step by Step Solution
- Step 1: Write the proportion equation
93,481.05 : 129,008.79 = 51,039.75 : x - Step 2: Convert to fraction form
93,481.05/129,008.79 = 51,039.75/x - Step 3: Cross multiply
93,481.05x = 129,008.79 × 51,039.75 - Step 4: Simplify right side
93,481.05x = 6,584,576,389.40 - Step 5: Solve for x
x = 6,584,576,389.40/93,481.05 - Step 6: Final answer
x = 70,437.55
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1.5x scale
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.