Finding the Fourth Proportional to 97,783.08, 134,940.58 and 55,340.84
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Solution
The fourth proportional to 97,783.08, 134,940.58 and 55,340.84 is: 76,370.32
Step by Step Solution
- Step 1: Write the proportion equation
97,783.08 : 134,940.58 = 55,340.84 : x - Step 2: Convert to fraction form
97,783.08/134,940.58 = 55,340.84/x - Step 3: Cross multiply
97,783.08x = 134,940.58 × 55,340.84 - Step 4: Simplify right side
97,783.08x = 7,467,725,047.29 - Step 5: Solve for x
x = 7,467,725,047.29/97,783.08 - Step 6: Final answer
x = 76,370.32
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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.