Finding the Fourth Proportional to 97,869.76, 135,060.96 and 53,157.76
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Solution
The fourth proportional to 97,869.76, 135,060.96 and 53,157.76 is: 73,358.08
Step by Step Solution
- Step 1: Write the proportion equation
97,869.76 : 135,060.96 = 53,157.76 : x - Step 2: Convert to fraction form
97,869.76/135,060.96 = 53,157.76/x - Step 3: Cross multiply
97,869.76x = 135,060.96 × 53,157.76 - Step 4: Simplify right side
97,869.76x = 7,179,538,097.05 - Step 5: Solve for x
x = 7,179,538,097.05/97,869.76 - Step 6: Final answer
x = 73,358.08
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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.