Finding the Fourth Proportional to 83,762.14, 115,618.68 and 53,628.62
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Solution
The fourth proportional to 83,762.14, 115,618.68 and 53,628.62 is: 74,024.74
Step by Step Solution
- Step 1: Write the proportion equation
83,762.14 : 115,618.68 = 53,628.62 : x - Step 2: Convert to fraction form
83,762.14/115,618.68 = 53,628.62/x - Step 3: Cross multiply
83,762.14x = 115,618.68 × 53,628.62 - Step 4: Simplify right side
83,762.14x = 6,200,470,254.62 - Step 5: Solve for x
x = 6,200,470,254.62/83,762.14 - Step 6: Final answer
x = 74,024.74
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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.