Finding the Fourth Proportional to 68,332.59, 102,510.99 and 20,946.60
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Solution
The fourth proportional to 68,332.59, 102,510.99 and 20,946.60 is: 31,423.61
Step by Step Solution
- Step 1: Write the proportion equation
68,332.59 : 102,510.99 = 20,946.60 : x - Step 2: Convert to fraction form
68,332.59/102,510.99 = 20,946.60/x - Step 3: Cross multiply
68,332.59x = 102,510.99 × 20,946.60 - Step 4: Simplify right side
68,332.59x = 2,147,256,703.13 - Step 5: Solve for x
x = 2,147,256,703.13/68,332.59 - Step 6: Final answer
x = 31,423.61
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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.