Finding the Fourth Proportional to 74,349.84, 102,599.28 and 40,357.56
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Solution
The fourth proportional to 74,349.84, 102,599.28 and 40,357.56 is: 55,691.53
Step by Step Solution
- Step 1: Write the proportion equation
74,349.84 : 102,599.28 = 40,357.56 : x - Step 2: Convert to fraction form
74,349.84/102,599.28 = 40,357.56/x - Step 3: Cross multiply
74,349.84x = 102,599.28 × 40,357.56 - Step 4: Simplify right side
74,349.84x = 4,140,656,598.56 - Step 5: Solve for x
x = 4,140,656,598.56/74,349.84 - Step 6: Final answer
x = 55,691.53
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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.