Finding the Fourth Proportional to 74,030.50, 102,162.09 and 40,038.99
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Solution
The fourth proportional to 74,030.50, 102,162.09 and 40,038.99 is: 55,253.80
Step by Step Solution
- Step 1: Write the proportion equation
74,030.50 : 102,162.09 = 40,038.99 : x - Step 2: Convert to fraction form
74,030.50/102,162.09 = 40,038.99/x - Step 3: Cross multiply
74,030.50x = 102,162.09 × 40,038.99 - Step 4: Simplify right side
74,030.50x = 4,090,466,672.09 - Step 5: Solve for x
x = 4,090,466,672.09/74,030.50 - Step 6: Final answer
x = 55,253.80
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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.