Finding the Fourth Proportional to 74,029.57, 110,974.95 and 36,070.54
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Solution
The fourth proportional to 74,029.57, 110,974.95 and 36,070.54 is: 54,071.99
Step by Step Solution
- Step 1: Write the proportion equation
74,029.57 : 110,974.95 = 36,070.54 : x - Step 2: Convert to fraction form
74,029.57/110,974.95 = 36,070.54/x - Step 3: Cross multiply
74,029.57x = 110,974.95 × 36,070.54 - Step 4: Simplify right side
74,029.57x = 4,002,926,095.54 - Step 5: Solve for x
x = 4,002,926,095.54/74,029.57 - Step 6: Final answer
x = 54,071.99
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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.