Finding the Fourth Proportional to 97,921.24, 135,130.96 and 55,487.88
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Solution
The fourth proportional to 97,921.24, 135,130.96 and 55,487.88 is: 76,573.08
Step by Step Solution
- Step 1: Write the proportion equation
97,921.24 : 135,130.96 = 55,487.88 : x - Step 2: Convert to fraction form
97,921.24/135,130.96 = 55,487.88/x - Step 3: Cross multiply
97,921.24x = 135,130.96 × 55,487.88 - Step 4: Simplify right side
97,921.24x = 7,498,130,492.76 - Step 5: Solve for x
x = 7,498,130,492.76/97,921.24 - Step 6: Final answer
x = 76,573.08
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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.