Finding the Fourth Proportional to 97,768.96, 135,031.68 and 65,882.52
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Solution
The fourth proportional to 97,768.96, 135,031.68 and 65,882.52 is: 90,992.35
Step by Step Solution
- Step 1: Write the proportion equation
97,768.96 : 135,031.68 = 65,882.52 : x - Step 2: Convert to fraction form
97,768.96/135,031.68 = 65,882.52/x - Step 3: Cross multiply
97,768.96x = 135,031.68 × 65,882.52 - Step 4: Simplify right side
97,768.96x = 8,896,227,358.23 - Step 5: Solve for x
x = 8,896,227,358.23/97,768.96 - Step 6: Final answer
x = 90,992.35
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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.