Finding the Fourth Proportional to 81,454.62, 112,405.55 and 47,460.99
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Solution
The fourth proportional to 81,454.62, 112,405.55 and 47,460.99 is: 65,495.10
Step by Step Solution
- Step 1: Write the proportion equation
81,454.62 : 112,405.55 = 47,460.99 : x - Step 2: Convert to fraction form
81,454.62/112,405.55 = 47,460.99/x - Step 3: Cross multiply
81,454.62x = 112,405.55 × 47,460.99 - Step 4: Simplify right side
81,454.62x = 5,334,878,684.49 - Step 5: Solve for x
x = 5,334,878,684.49/81,454.62 - Step 6: Final answer
x = 65,495.10
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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.