Finding the Fourth Proportional to 88,135.98, 121,627.68 and 47,849.76
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Solution
The fourth proportional to 88,135.98, 121,627.68 and 47,849.76 is: 66,032.68
Step by Step Solution
- Step 1: Write the proportion equation
88,135.98 : 121,627.68 = 47,849.76 : x - Step 2: Convert to fraction form
88,135.98/121,627.68 = 47,849.76/x - Step 3: Cross multiply
88,135.98x = 121,627.68 × 47,849.76 - Step 4: Simplify right side
88,135.98x = 5,819,855,297.36 - Step 5: Solve for x
x = 5,819,855,297.36/88,135.98 - Step 6: Final answer
x = 66,032.68
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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.