Finding the Fourth Proportional to 88,280.20, 132,420.30 and 53,201.80
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Solution
The fourth proportional to 88,280.20, 132,420.30 and 53,201.80 is: 79,802.70
Step by Step Solution
- Step 1: Write the proportion equation
88,280.20 : 132,420.30 = 53,201.80 : x - Step 2: Convert to fraction form
88,280.20/132,420.30 = 53,201.80/x - Step 3: Cross multiply
88,280.20x = 132,420.30 × 53,201.80 - Step 4: Simplify right side
88,280.20x = 7,044,998,316.54 - Step 5: Solve for x
x = 7,044,998,316.54/88,280.20 - Step 6: Final answer
x = 79,802.70
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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.