Finding the Fourth Proportional to 94,719.12, 130,759.70 and 58,920.63
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Solution
The fourth proportional to 94,719.12, 130,759.70 and 58,920.63 is: 81,339.90
Step by Step Solution
- Step 1: Write the proportion equation
94,719.12 : 130,759.70 = 58,920.63 : x - Step 2: Convert to fraction form
94,719.12/130,759.70 = 58,920.63/x - Step 3: Cross multiply
94,719.12x = 130,759.70 × 58,920.63 - Step 4: Simplify right side
94,719.12x = 7,704,443,608.01 - Step 5: Solve for x
x = 7,704,443,608.01/94,719.12 - Step 6: Final answer
x = 81,339.90
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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.