Finding the Fourth Proportional to 77,969.96, 107,598.60 and 42,159.99
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Solution
The fourth proportional to 77,969.96, 107,598.60 and 42,159.99 is: 58,180.82
Step by Step Solution
- Step 1: Write the proportion equation
77,969.96 : 107,598.60 = 42,159.99 : x - Step 2: Convert to fraction form
77,969.96/107,598.60 = 42,159.99/x - Step 3: Cross multiply
77,969.96x = 107,598.60 × 42,159.99 - Step 4: Simplify right side
77,969.96x = 4,536,355,900.01 - Step 5: Solve for x
x = 4,536,355,900.01/77,969.96 - Step 6: Final answer
x = 58,180.82
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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.