Finding the Fourth Proportional to 68,644.18, 103,001.58 and 51,998.68
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Solution
The fourth proportional to 68,644.18, 103,001.58 and 51,998.68 is: 78,024.77
Step by Step Solution
- Step 1: Write the proportion equation
68,644.18 : 103,001.58 = 51,998.68 : x - Step 2: Convert to fraction form
68,644.18/103,001.58 = 51,998.68/x - Step 3: Cross multiply
68,644.18x = 103,001.58 × 51,998.68 - Step 4: Simplify right side
68,644.18x = 5,355,946,197.91 - Step 5: Solve for x
x = 5,355,946,197.91/68,644.18 - Step 6: Final answer
x = 78,024.77
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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.