Finding the Fourth Proportional to 83,652.79, 115,441.68 and 45,412.63
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Solution
The fourth proportional to 83,652.79, 115,441.68 and 45,412.63 is: 62,669.88
Step by Step Solution
- Step 1: Write the proportion equation
83,652.79 : 115,441.68 = 45,412.63 : x - Step 2: Convert to fraction form
83,652.79/115,441.68 = 45,412.63/x - Step 3: Cross multiply
83,652.79x = 115,441.68 × 45,412.63 - Step 4: Simplify right side
83,652.79x = 5,242,510,300.42 - Step 5: Solve for x
x = 5,242,510,300.42/83,652.79 - Step 6: Final answer
x = 62,669.88
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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.