Finding the Fourth Proportional to 77,557.16, 116,336.28 and 42,477.68
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Solution
The fourth proportional to 77,557.16, 116,336.28 and 42,477.68 is: 63,716.82
Step by Step Solution
- Step 1: Write the proportion equation
77,557.16 : 116,336.28 = 42,477.68 : x - Step 2: Convert to fraction form
77,557.16/116,336.28 = 42,477.68/x - Step 3: Cross multiply
77,557.16x = 116,336.28 × 42,477.68 - Step 4: Simplify right side
77,557.16x = 4,941,695,274.23 - Step 5: Solve for x
x = 4,941,695,274.23/77,557.16 - Step 6: Final answer
x = 63,716.82
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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.