Finding the Fourth Proportional to 87,089.14, 120,182.45 and 47,345.14
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Solution
The fourth proportional to 87,089.14, 120,182.45 and 47,345.14 is: 65,335.99
Step by Step Solution
- Step 1: Write the proportion equation
87,089.14 : 120,182.45 = 47,345.14 : x - Step 2: Convert to fraction form
87,089.14/120,182.45 = 47,345.14/x - Step 3: Cross multiply
87,089.14x = 120,182.45 × 47,345.14 - Step 4: Simplify right side
87,089.14x = 5,690,054,920.79 - Step 5: Solve for x
x = 5,690,054,920.79/87,089.14 - Step 6: Final answer
x = 65,335.99
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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.