Finding the Fourth Proportional to 88,021.92, 121,473.36 and 62,931.36
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Solution
The fourth proportional to 88,021.92, 121,473.36 and 62,931.36 is: 86,847.50
Step by Step Solution
- Step 1: Write the proportion equation
88,021.92 : 121,473.36 = 62,931.36 : x - Step 2: Convert to fraction form
88,021.92/121,473.36 = 62,931.36/x - Step 3: Cross multiply
88,021.92x = 121,473.36 × 62,931.36 - Step 4: Simplify right side
88,021.92x = 7,644,483,748.57 - Step 5: Solve for x
x = 7,644,483,748.57/88,021.92 - Step 6: Final answer
x = 86,847.50
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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.