Finding the Fourth Proportional to 77,071.99, 115,610.04 and 27,140.74
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Solution
The fourth proportional to 77,071.99, 115,610.04 and 27,140.74 is: 40,711.83
Step by Step Solution
- Step 1: Write the proportion equation
77,071.99 : 115,610.04 = 27,140.74 : x - Step 2: Convert to fraction form
77,071.99/115,610.04 = 27,140.74/x - Step 3: Cross multiply
77,071.99x = 115,610.04 × 27,140.74 - Step 4: Simplify right side
77,071.99x = 3,137,742,037.03 - Step 5: Solve for x
x = 3,137,742,037.03/77,071.99 - Step 6: Final answer
x = 40,711.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.