Finding the Fourth Proportional to 77,718.58, 116,554.99 and 30,323.06
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Solution
The fourth proportional to 77,718.58, 116,554.99 and 30,323.06 is: 45,475.66
Step by Step Solution
- Step 1: Write the proportion equation
77,718.58 : 116,554.99 = 30,323.06 : x - Step 2: Convert to fraction form
77,718.58/116,554.99 = 30,323.06/x - Step 3: Cross multiply
77,718.58x = 116,554.99 × 30,323.06 - Step 4: Simplify right side
77,718.58x = 3,534,303,955.07 - Step 5: Solve for x
x = 3,534,303,955.07/77,718.58 - Step 6: Final answer
x = 45,475.66
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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.