Finding the Fourth Proportional to 91,290.06, 125,973.09 and 51,000.66
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Solution
The fourth proportional to 91,290.06, 125,973.09 and 51,000.66 is: 70,376.89
Step by Step Solution
- Step 1: Write the proportion equation
91,290.06 : 125,973.09 = 51,000.66 : x - Step 2: Convert to fraction form
91,290.06/125,973.09 = 51,000.66/x - Step 3: Cross multiply
91,290.06x = 125,973.09 × 51,000.66 - Step 4: Simplify right side
91,290.06x = 6,424,710,732.24 - Step 5: Solve for x
x = 6,424,710,732.24/91,290.06 - Step 6: Final answer
x = 70,376.89
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1.5x scale
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.