Finding the Fourth Proportional to 75,245.18, 103,817.34 and 59,280.08
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Solution
The fourth proportional to 75,245.18, 103,817.34 and 59,280.08 is: 81,789.96
Step by Step Solution
- Step 1: Write the proportion equation
75,245.18 : 103,817.34 = 59,280.08 : x - Step 2: Convert to fraction form
75,245.18/103,817.34 = 59,280.08/x - Step 3: Cross multiply
75,245.18x = 103,817.34 × 59,280.08 - Step 4: Simplify right side
75,245.18x = 6,154,300,220.59 - Step 5: Solve for x
x = 6,154,300,220.59/75,245.18 - Step 6: Final answer
x = 81,789.96
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1.5x scale
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.