Finding the Fourth Proportional to 77,079.11, 106,386.93 and 50,174.75
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Solution
The fourth proportional to 77,079.11, 106,386.93 and 50,174.75 is: 69,252.71
Step by Step Solution
- Step 1: Write the proportion equation
77,079.11 : 106,386.93 = 50,174.75 : x - Step 2: Convert to fraction form
77,079.11/106,386.93 = 50,174.75/x - Step 3: Cross multiply
77,079.11x = 106,386.93 × 50,174.75 - Step 4: Simplify right side
77,079.11x = 5,337,937,084.08 - Step 5: Solve for x
x = 5,337,937,084.08/77,079.11 - Step 6: Final answer
x = 69,252.71
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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.