Finding the Fourth Proportional to 87,475.08, 120,671.36 and 51,152.78
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Solution
The fourth proportional to 87,475.08, 120,671.36 and 51,152.78 is: 70,564.95
Step by Step Solution
- Step 1: Write the proportion equation
87,475.08 : 120,671.36 = 51,152.78 : x - Step 2: Convert to fraction form
87,475.08/120,671.36 = 51,152.78/x - Step 3: Cross multiply
87,475.08x = 120,671.36 × 51,152.78 - Step 4: Simplify right side
87,475.08x = 6,172,674,671.26 - Step 5: Solve for x
x = 6,172,674,671.26/87,475.08 - Step 6: Final answer
x = 70,564.95
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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.