Finding the Fourth Proportional to 74,317.53, 102,643.37 and 48,937.36
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Solution
The fourth proportional to 74,317.53, 102,643.37 and 48,937.36 is: 67,589.65
Step by Step Solution
- Step 1: Write the proportion equation
74,317.53 : 102,643.37 = 48,937.36 : x - Step 2: Convert to fraction form
74,317.53/102,643.37 = 48,937.36/x - Step 3: Cross multiply
74,317.53x = 102,643.37 × 48,937.36 - Step 4: Simplify right side
74,317.53x = 5,023,095,549.30 - Step 5: Solve for x
x = 5,023,095,549.30/74,317.53 - Step 6: Final answer
x = 67,589.65
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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.