Finding the Fourth Proportional to 88,218.36, 121,746.78 and 50,491.80
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Solution
The fourth proportional to 88,218.36, 121,746.78 and 50,491.80 is: 69,681.80
Step by Step Solution
- Step 1: Write the proportion equation
88,218.36 : 121,746.78 = 50,491.80 : x - Step 2: Convert to fraction form
88,218.36/121,746.78 = 50,491.80/x - Step 3: Cross multiply
88,218.36x = 121,746.78 × 50,491.80 - Step 4: Simplify right side
88,218.36x = 6,147,214,066.40 - Step 5: Solve for x
x = 6,147,214,066.40/88,218.36 - Step 6: Final answer
x = 69,681.80
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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.