Finding the Fourth Proportional to 74,252.30, 102,467.78 and 40,261.53
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Solution
The fourth proportional to 74,252.30, 102,467.78 and 40,261.53 is: 55,560.71
Step by Step Solution
- Step 1: Write the proportion equation
74,252.30 : 102,467.78 = 40,261.53 : x - Step 2: Convert to fraction form
74,252.30/102,467.78 = 40,261.53/x - Step 3: Cross multiply
74,252.30x = 102,467.78 × 40,261.53 - Step 4: Simplify right side
74,252.30x = 4,125,509,870.71 - Step 5: Solve for x
x = 4,125,509,870.71/74,252.30 - Step 6: Final answer
x = 55,560.71
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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.