Finding the Fourth Proportional to 87,019.07, 120,108.08 and 53,465.63
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Solution
The fourth proportional to 87,019.07, 120,108.08 and 53,465.63 is: 73,795.94
Step by Step Solution
- Step 1: Write the proportion equation
87,019.07 : 120,108.08 = 53,465.63 : x - Step 2: Convert to fraction form
87,019.07/120,108.08 = 53,465.63/x - Step 3: Cross multiply
87,019.07x = 120,108.08 × 53,465.63 - Step 4: Simplify right side
87,019.07x = 6,421,653,698.41 - Step 5: Solve for x
x = 6,421,653,698.41/87,019.07 - Step 6: Final answer
x = 73,795.94
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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.