Finding the Fourth Proportional to 81,219.48, 112,083.30 and 47,248.08
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Solution
The fourth proportional to 81,219.48, 112,083.30 and 47,248.08 is: 65,202.59
Step by Step Solution
- Step 1: Write the proportion equation
81,219.48 : 112,083.30 = 47,248.08 : x - Step 2: Convert to fraction form
81,219.48/112,083.30 = 47,248.08/x - Step 3: Cross multiply
81,219.48x = 112,083.30 × 47,248.08 - Step 4: Simplify right side
81,219.48x = 5,295,720,725.06 - Step 5: Solve for x
x = 5,295,720,725.06/81,219.48 - Step 6: Final answer
x = 65,202.59
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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.