Finding the Fourth Proportional to 72,657.19, 108,977.68 and 25,264.09
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Solution
The fourth proportional to 72,657.19, 108,977.68 and 25,264.09 is: 37,893.32
Step by Step Solution
- Step 1: Write the proportion equation
72,657.19 : 108,977.68 = 25,264.09 : x - Step 2: Convert to fraction form
72,657.19/108,977.68 = 25,264.09/x - Step 3: Cross multiply
72,657.19x = 108,977.68 × 25,264.09 - Step 4: Simplify right side
72,657.19x = 2,753,221,915.51 - Step 5: Solve for x
x = 2,753,221,915.51/72,657.19 - Step 6: Final answer
x = 37,893.32
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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.