Finding the Fourth Proportional to 86,974.77, 120,023.14 and 51,167.08
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Solution
The fourth proportional to 86,974.77, 120,023.14 and 51,167.08 is: 70,609.37
Step by Step Solution
- Step 1: Write the proportion equation
86,974.77 : 120,023.14 = 51,167.08 : x - Step 2: Convert to fraction form
86,974.77/120,023.14 = 51,167.08/x - Step 3: Cross multiply
86,974.77x = 120,023.14 × 51,167.08 - Step 4: Simplify right side
86,974.77x = 6,141,233,606.23 - Step 5: Solve for x
x = 6,141,233,606.23/86,974.77 - Step 6: Final answer
x = 70,609.37
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1.5x scale
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.