Finding the Fourth Proportional to 93,678.84, 140,518.44 and 38,274.84
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Solution
The fourth proportional to 93,678.84, 140,518.44 and 38,274.84 is: 57,412.33
Step by Step Solution
- Step 1: Write the proportion equation
93,678.84 : 140,518.44 = 38,274.84 : x - Step 2: Convert to fraction form
93,678.84/140,518.44 = 38,274.84/x - Step 3: Cross multiply
93,678.84x = 140,518.44 × 38,274.84 - Step 4: Simplify right side
93,678.84x = 5,378,320,808.05 - Step 5: Solve for x
x = 5,378,320,808.05/93,678.84 - Step 6: Final answer
x = 57,412.33
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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.