Finding the Fourth Proportional to 99,031.08, 136,680.36 and 58,767.05
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Solution
The fourth proportional to 99,031.08, 136,680.36 and 58,767.05 is: 81,108.89
Step by Step Solution
- Step 1: Write the proportion equation
99,031.08 : 136,680.36 = 58,767.05 : x - Step 2: Convert to fraction form
99,031.08/136,680.36 = 58,767.05/x - Step 3: Cross multiply
99,031.08x = 136,680.36 × 58,767.05 - Step 4: Simplify right side
99,031.08x = 8,032,300,866.74 - Step 5: Solve for x
x = 8,032,300,866.74/99,031.08 - Step 6: Final answer
x = 81,108.89
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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.