Finding the Fourth Proportional to 88,429.68, 122,032.86 and 48,143.74
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Solution
The fourth proportional to 88,429.68, 122,032.86 and 48,143.74 is: 66,438.31
Step by Step Solution
- Step 1: Write the proportion equation
88,429.68 : 122,032.86 = 48,143.74 : x - Step 2: Convert to fraction form
88,429.68/122,032.86 = 48,143.74/x - Step 3: Cross multiply
88,429.68x = 122,032.86 × 48,143.74 - Step 4: Simplify right side
88,429.68x = 5,875,118,283.30 - Step 5: Solve for x
x = 5,875,118,283.30/88,429.68 - Step 6: Final answer
x = 66,438.31
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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.