Finding the Fourth Proportional to 93,977.76, 129,689.26 and 51,537.21
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Solution
The fourth proportional to 93,977.76, 129,689.26 and 51,537.21 is: 71,121.32
Step by Step Solution
- Step 1: Write the proportion equation
93,977.76 : 129,689.26 = 51,537.21 : x - Step 2: Convert to fraction form
93,977.76/129,689.26 = 51,537.21/x - Step 3: Cross multiply
93,977.76x = 129,689.26 × 51,537.21 - Step 4: Simplify right side
93,977.76x = 6,683,822,627.36 - Step 5: Solve for x
x = 6,683,822,627.36/93,977.76 - Step 6: Final answer
x = 71,121.32
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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.