Finding the Fourth Proportional to 93,402.81, 128,745.29 and 63,177.09
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Solution
The fourth proportional to 93,402.81, 128,745.29 and 63,177.09 is: 87,082.52
Step by Step Solution
- Step 1: Write the proportion equation
93,402.81 : 128,745.29 = 63,177.09 : x - Step 2: Convert to fraction form
93,402.81/128,745.29 = 63,177.09/x - Step 3: Cross multiply
93,402.81x = 128,745.29 × 63,177.09 - Step 4: Simplify right side
93,402.81x = 8,133,752,457.52 - Step 5: Solve for x
x = 8,133,752,457.52/93,402.81 - Step 6: Final answer
x = 87,082.52
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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.