Finding the Fourth Proportional to 74,881.06, 112,238.40 and 57,052.95
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Solution
The fourth proportional to 74,881.06, 112,238.40 and 57,052.95 is: 85,516.03
Step by Step Solution
- Step 1: Write the proportion equation
74,881.06 : 112,238.40 = 57,052.95 : x - Step 2: Convert to fraction form
74,881.06/112,238.40 = 57,052.95/x - Step 3: Cross multiply
74,881.06x = 112,238.40 × 57,052.95 - Step 4: Simplify right side
74,881.06x = 6,403,531,547.13 - Step 5: Solve for x
x = 6,403,531,547.13/74,881.06 - Step 6: Final answer
x = 85,516.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.