Finding the Fourth Proportional to 83,475.84, 115,197.12 and 45,235.56
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Solution
The fourth proportional to 83,475.84, 115,197.12 and 45,235.56 is: 62,425.32
Step by Step Solution
- Step 1: Write the proportion equation
83,475.84 : 115,197.12 = 45,235.56 : x - Step 2: Convert to fraction form
83,475.84/115,197.12 = 45,235.56/x - Step 3: Cross multiply
83,475.84x = 115,197.12 × 45,235.56 - Step 4: Simplify right side
83,475.84x = 5,211,006,233.59 - Step 5: Solve for x
x = 5,211,006,233.59/83,475.84 - Step 6: Final answer
x = 62,425.32
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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.