Finding the Fourth Proportional to 77,072.68, 106,345.86 and 48,758.44
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Solution
The fourth proportional to 77,072.68, 106,345.86 and 48,758.44 is: 67,277.51
Step by Step Solution
- Step 1: Write the proportion equation
77,072.68 : 106,345.86 = 48,758.44 : x - Step 2: Convert to fraction form
77,072.68/106,345.86 = 48,758.44/x - Step 3: Cross multiply
77,072.68x = 106,345.86 × 48,758.44 - Step 4: Simplify right side
77,072.68x = 5,185,258,234.06 - Step 5: Solve for x
x = 5,185,258,234.06/77,072.68 - Step 6: Final answer
x = 67,277.51
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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.