Finding the Fourth Proportional to 100,004.68, 138,005.17 and 59,772.08
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Solution
The fourth proportional to 100,004.68, 138,005.17 and 59,772.08 is: 82,484.70
Step by Step Solution
- Step 1: Write the proportion equation
100,004.68 : 138,005.17 = 59,772.08 : x - Step 2: Convert to fraction form
100,004.68/138,005.17 = 59,772.08/x - Step 3: Cross multiply
100,004.68x = 138,005.17 × 59,772.08 - Step 4: Simplify right side
100,004.68x = 8,248,855,480.96 - Step 5: Solve for x
x = 8,248,855,480.96/100,004.68 - Step 6: Final answer
x = 82,484.70
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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.