Finding the Fourth Proportional to 67,137.95, 100,706.99 and 31,970.99
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Solution
The fourth proportional to 67,137.95, 100,706.99 and 31,970.99 is: 47,956.51
Step by Step Solution
- Step 1: Write the proportion equation
67,137.95 : 100,706.99 = 31,970.99 : x - Step 2: Convert to fraction form
67,137.95/100,706.99 = 31,970.99/x - Step 3: Cross multiply
67,137.95x = 100,706.99 × 31,970.99 - Step 4: Simplify right side
67,137.95x = 3,219,701,506.83 - Step 5: Solve for x
x = 3,219,701,506.83/67,137.95 - Step 6: Final answer
x = 47,956.51
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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.