Finding the Fourth Proportional to 93,737.58, 129,360.09 and 53,455.20
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Solution
The fourth proportional to 93,737.58, 129,360.09 and 53,455.20 is: 73,769.45
Step by Step Solution
- Step 1: Write the proportion equation
93,737.58 : 129,360.09 = 53,455.20 : x - Step 2: Convert to fraction form
93,737.58/129,360.09 = 53,455.20/x - Step 3: Cross multiply
93,737.58x = 129,360.09 × 53,455.20 - Step 4: Simplify right side
93,737.58x = 6,914,969,482.97 - Step 5: Solve for x
x = 6,914,969,482.97/93,737.58 - Step 6: Final answer
x = 73,769.45
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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.