Finding the Fourth Proportional to 68,503.20, 102,754.80 and 19,248.80
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Solution
The fourth proportional to 68,503.20, 102,754.80 and 19,248.80 is: 28,873.20
Step by Step Solution
- Step 1: Write the proportion equation
68,503.20 : 102,754.80 = 19,248.80 : x - Step 2: Convert to fraction form
68,503.20/102,754.80 = 19,248.80/x - Step 3: Cross multiply
68,503.20x = 102,754.80 × 19,248.80 - Step 4: Simplify right side
68,503.20x = 1,977,906,594.24 - Step 5: Solve for x
x = 1,977,906,594.24/68,503.20 - Step 6: Final answer
x = 28,873.20
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1.5x scale
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.