Finding the Fourth Proportional to 86,779.76, 130,034.99 and 60,177.63
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Solution
The fourth proportional to 86,779.76, 130,034.99 and 60,177.63 is: 90,173.08
Step by Step Solution
- Step 1: Write the proportion equation
86,779.76 : 130,034.99 = 60,177.63 : x - Step 2: Convert to fraction form
86,779.76/130,034.99 = 60,177.63/x - Step 3: Cross multiply
86,779.76x = 130,034.99 × 60,177.63 - Step 4: Simplify right side
86,779.76x = 7,825,197,689.92 - Step 5: Solve for x
x = 7,825,197,689.92/86,779.76 - Step 6: Final answer
x = 90,173.08
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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.