Finding the Fourth Proportional to 77,317.62, 106,700.94 and 73,774.68
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Solution
The fourth proportional to 77,317.62, 106,700.94 and 73,774.68 is: 101,811.56
Step by Step Solution
- Step 1: Write the proportion equation
77,317.62 : 106,700.94 = 73,774.68 : x - Step 2: Convert to fraction form
77,317.62/106,700.94 = 73,774.68/x - Step 3: Cross multiply
77,317.62x = 106,700.94 × 73,774.68 - Step 4: Simplify right side
77,317.62x = 7,871,827,704.20 - Step 5: Solve for x
x = 7,871,827,704.20/77,317.62 - Step 6: Final answer
x = 101,811.56
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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.