Finding the Fourth Proportional to 93,905.57, 129,532.11 and 76,702.94
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Solution
The fourth proportional to 93,905.57, 129,532.11 and 76,702.94 is: 105,803.02
Step by Step Solution
- Step 1: Write the proportion equation
93,905.57 : 129,532.11 = 76,702.94 : x - Step 2: Convert to fraction form
93,905.57/129,532.11 = 76,702.94/x - Step 3: Cross multiply
93,905.57x = 129,532.11 × 76,702.94 - Step 4: Simplify right side
93,905.57x = 9,935,493,013.74 - Step 5: Solve for x
x = 9,935,493,013.74/93,905.57 - Step 6: Final answer
x = 105,803.02
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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.