Finding the Fourth Proportional to 77,724.31, 116,586.51 and 31,009.99
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Solution
The fourth proportional to 77,724.31, 116,586.51 and 31,009.99 is: 46,515.00
Step by Step Solution
- Step 1: Write the proportion equation
77,724.31 : 116,586.51 = 31,009.99 : x - Step 2: Convert to fraction form
77,724.31/116,586.51 = 31,009.99/x - Step 3: Cross multiply
77,724.31x = 116,586.51 × 31,009.99 - Step 4: Simplify right side
77,724.31x = 3,615,346,509.23 - Step 5: Solve for x
x = 3,615,346,509.23/77,724.31 - Step 6: Final answer
x = 46,515.00
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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.