Finding the Fourth Proportional to 74,681.07, 103,081.61 and 48,843.29
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Solution
The fourth proportional to 74,681.07, 103,081.61 and 48,843.29 is: 67,417.95
Step by Step Solution
- Step 1: Write the proportion equation
74,681.07 : 103,081.61 = 48,843.29 : x - Step 2: Convert to fraction form
74,681.07/103,081.61 = 48,843.29/x - Step 3: Cross multiply
74,681.07x = 103,081.61 × 48,843.29 - Step 4: Simplify right side
74,681.07x = 5,034,844,970.90 - Step 5: Solve for x
x = 5,034,844,970.90/74,681.07 - Step 6: Final answer
x = 67,417.95
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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.