Finding the Fourth Proportional to 99,065.08, 136,719.24 and 56,615.38
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Solution
The fourth proportional to 99,065.08, 136,719.24 and 56,615.38 is: 78,134.61
Step by Step Solution
- Step 1: Write the proportion equation
99,065.08 : 136,719.24 = 56,615.38 : x - Step 2: Convert to fraction form
99,065.08/136,719.24 = 56,615.38/x - Step 3: Cross multiply
99,065.08x = 136,719.24 × 56,615.38 - Step 4: Simplify right side
99,065.08x = 7,740,411,725.91 - Step 5: Solve for x
x = 7,740,411,725.91/99,065.08 - Step 6: Final answer
x = 78,134.61
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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.