Finding the Fourth Proportional to 71,588.18, 107,385.99 and 18,280.67
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Solution
The fourth proportional to 71,588.18, 107,385.99 and 18,280.67 is: 27,421.95
Step by Step Solution
- Step 1: Write the proportion equation
71,588.18 : 107,385.99 = 18,280.67 : x - Step 2: Convert to fraction form
71,588.18/107,385.99 = 18,280.67/x - Step 3: Cross multiply
71,588.18x = 107,385.99 × 18,280.67 - Step 4: Simplify right side
71,588.18x = 1,963,087,240.33 - Step 5: Solve for x
x = 1,963,087,240.33/71,588.18 - Step 6: Final answer
x = 27,421.95
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1.5x scale
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.