Finding the Fourth Proportional to 73,962.40, 102,043.16 and 42,108.74
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Solution
The fourth proportional to 73,962.40, 102,043.16 and 42,108.74 is: 58,095.86
Step by Step Solution
- Step 1: Write the proportion equation
73,962.40 : 102,043.16 = 42,108.74 : x - Step 2: Convert to fraction form
73,962.40/102,043.16 = 42,108.74/x - Step 3: Cross multiply
73,962.40x = 102,043.16 × 42,108.74 - Step 4: Simplify right side
73,962.40x = 4,296,908,893.22 - Step 5: Solve for x
x = 4,296,908,893.22/73,962.40 - Step 6: Final answer
x = 58,095.86
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1.5x scale
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.