Finding the Fourth Proportional to 74,655.30, 111,981.58 and 18,495.53
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Solution
The fourth proportional to 74,655.30, 111,981.58 and 18,495.53 is: 27,742.95
Step by Step Solution
- Step 1: Write the proportion equation
74,655.30 : 111,981.58 = 18,495.53 : x - Step 2: Convert to fraction form
74,655.30/111,981.58 = 18,495.53/x - Step 3: Cross multiply
74,655.30x = 111,981.58 × 18,495.53 - Step 4: Simplify right side
74,655.30x = 2,071,158,302.64 - Step 5: Solve for x
x = 2,071,158,302.64/74,655.30 - Step 6: Final answer
x = 27,742.95
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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.