Finding the Fourth Proportional to 74,339.24, 102,588.20 and 42,508.76
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Solution
The fourth proportional to 74,339.24, 102,588.20 and 42,508.76 is: 58,662.12
Step by Step Solution
- Step 1: Write the proportion equation
74,339.24 : 102,588.20 = 42,508.76 : x - Step 2: Convert to fraction form
74,339.24/102,588.20 = 42,508.76/x - Step 3: Cross multiply
74,339.24x = 102,588.20 × 42,508.76 - Step 4: Simplify right side
74,339.24x = 4,360,897,172.63 - Step 5: Solve for x
x = 4,360,897,172.63/74,339.24 - Step 6: Final answer
x = 58,662.12
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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.