Finding the Fourth Proportional to 73,660.68, 110,490.84 and 21,070.08
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Solution
The fourth proportional to 73,660.68, 110,490.84 and 21,070.08 is: 31,605.07
Step by Step Solution
- Step 1: Write the proportion equation
73,660.68 : 110,490.84 = 21,070.08 : x - Step 2: Convert to fraction form
73,660.68/110,490.84 = 21,070.08/x - Step 3: Cross multiply
73,660.68x = 110,490.84 × 21,070.08 - Step 4: Simplify right side
73,660.68x = 2,328,050,838.07 - Step 5: Solve for x
x = 2,328,050,838.07/73,660.68 - Step 6: Final answer
x = 31,605.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.