Finding the Fourth Proportional to 74,693.65, 103,077.24 and 40,702.14
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Solution
The fourth proportional to 74,693.65, 103,077.24 and 40,702.14 is: 56,168.95
Step by Step Solution
- Step 1: Write the proportion equation
74,693.65 : 103,077.24 = 40,702.14 : x - Step 2: Convert to fraction form
74,693.65/103,077.24 = 40,702.14/x - Step 3: Cross multiply
74,693.65x = 103,077.24 × 40,702.14 - Step 4: Simplify right side
74,693.65x = 4,195,464,253.29 - Step 5: Solve for x
x = 4,195,464,253.29/74,693.65 - Step 6: Final answer
x = 56,168.95
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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.