Finding the Fourth Proportional to 86,934.60, 119,998.26 and 51,122.88
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Solution
The fourth proportional to 86,934.60, 119,998.26 and 51,122.88 is: 70,566.34
Step by Step Solution
- Step 1: Write the proportion equation
86,934.60 : 119,998.26 = 51,122.88 : x - Step 2: Convert to fraction form
86,934.60/119,998.26 = 51,122.88/x - Step 3: Cross multiply
86,934.60x = 119,998.26 × 51,122.88 - Step 4: Simplify right side
86,934.60x = 6,134,656,646.19 - Step 5: Solve for x
x = 6,134,656,646.19/86,934.60 - Step 6: Final answer
x = 70,566.34
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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.