Finding the Fourth Proportional to 93,672.21, 129,262.98 and 53,387.67
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Solution
The fourth proportional to 93,672.21, 129,262.98 and 53,387.67 is: 73,672.32
Step by Step Solution
- Step 1: Write the proportion equation
93,672.21 : 129,262.98 = 53,387.67 : x - Step 2: Convert to fraction form
93,672.21/129,262.98 = 53,387.67/x - Step 3: Cross multiply
93,672.21x = 129,262.98 × 53,387.67 - Step 4: Simplify right side
93,672.21x = 6,901,049,319.46 - Step 5: Solve for x
x = 6,901,049,319.46/93,672.21 - Step 6: Final answer
x = 73,672.32
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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.