Finding the Fourth Proportional to 71,072.65, 106,468.58 and 46,130.05
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Solution
The fourth proportional to 71,072.65, 106,468.58 and 46,130.05 is: 69,103.95
Step by Step Solution
- Step 1: Write the proportion equation
71,072.65 : 106,468.58 = 46,130.05 : x - Step 2: Convert to fraction form
71,072.65/106,468.58 = 46,130.05/x - Step 3: Cross multiply
71,072.65x = 106,468.58 × 46,130.05 - Step 4: Simplify right side
71,072.65x = 4,911,400,688.18 - Step 5: Solve for x
x = 4,911,400,688.18/71,072.65 - Step 6: Final answer
x = 69,103.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.