Finding the Fourth Proportional to 77,819.42, 116,765.58 and 38,355.02
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Solution
The fourth proportional to 77,819.42, 116,765.58 and 38,355.02 is: 57,550.50
Step by Step Solution
- Step 1: Write the proportion equation
77,819.42 : 116,765.58 = 38,355.02 : x - Step 2: Convert to fraction form
77,819.42/116,765.58 = 38,355.02/x - Step 3: Cross multiply
77,819.42x = 116,765.58 × 38,355.02 - Step 4: Simplify right side
77,819.42x = 4,478,546,156.21 - Step 5: Solve for x
x = 4,478,546,156.21/77,819.42 - Step 6: Final answer
x = 57,550.50
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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.