Finding the Fourth Proportional to 99,340.26, 137,089.55 and 54,628.26
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Solution
The fourth proportional to 99,340.26, 137,089.55 and 54,628.26 is: 75,386.99
Step by Step Solution
- Step 1: Write the proportion equation
99,340.26 : 137,089.55 = 54,628.26 : x - Step 2: Convert to fraction form
99,340.26/137,089.55 = 54,628.26/x - Step 3: Cross multiply
99,340.26x = 137,089.55 × 54,628.26 - Step 4: Simplify right side
99,340.26x = 7,488,963,580.68 - Step 5: Solve for x
x = 7,488,963,580.68/99,340.26 - Step 6: Final answer
x = 75,386.99
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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.