Finding the Fourth Proportional to 77,964.93, 107,591.58 and 42,154.95
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Solution
The fourth proportional to 77,964.93, 107,591.58 and 42,154.95 is: 58,173.82
Step by Step Solution
- Step 1: Write the proportion equation
77,964.93 : 107,591.58 = 42,154.95 : x - Step 2: Convert to fraction form
77,964.93/107,591.58 = 42,154.95/x - Step 3: Cross multiply
77,964.93x = 107,591.58 × 42,154.95 - Step 4: Simplify right side
77,964.93x = 4,535,517,675.32 - Step 5: Solve for x
x = 4,535,517,675.32/77,964.93 - Step 6: Final answer
x = 58,173.82
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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.