Finding the Fourth Proportional to 97,937.28, 135,131.20 and 55,486.08
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Solution
The fourth proportional to 97,937.28, 135,131.20 and 55,486.08 is: 76,558.19
Step by Step Solution
- Step 1: Write the proportion equation
97,937.28 : 135,131.20 = 55,486.08 : x - Step 2: Convert to fraction form
97,937.28/135,131.20 = 55,486.08/x - Step 3: Cross multiply
97,937.28x = 135,131.20 × 55,486.08 - Step 4: Simplify right side
97,937.28x = 7,497,900,573.70 - Step 5: Solve for x
x = 7,497,900,573.70/97,937.28 - Step 6: Final answer
x = 76,558.19
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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.