Finding the Fourth Proportional to 93,727.87, 129,209.88 and 66,823.68
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Solution
The fourth proportional to 93,727.87, 129,209.88 and 66,823.68 is: 92,120.74
Step by Step Solution
- Step 1: Write the proportion equation
93,727.87 : 129,209.88 = 66,823.68 : x - Step 2: Convert to fraction form
93,727.87/129,209.88 = 66,823.68/x - Step 3: Cross multiply
93,727.87x = 129,209.88 × 66,823.68 - Step 4: Simplify right side
93,727.87x = 8,634,280,409.08 - Step 5: Solve for x
x = 8,634,280,409.08/93,727.87 - Step 6: Final answer
x = 92,120.74
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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.