Finding the Fourth Proportional to 75,700.68, 104,387.76 and 56,550.44
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Solution
The fourth proportional to 75,700.68, 104,387.76 and 56,550.44 is: 77,980.46
Step by Step Solution
- Step 1: Write the proportion equation
75,700.68 : 104,387.76 = 56,550.44 : x - Step 2: Convert to fraction form
75,700.68/104,387.76 = 56,550.44/x - Step 3: Cross multiply
75,700.68x = 104,387.76 × 56,550.44 - Step 4: Simplify right side
75,700.68x = 5,903,173,758.61 - Step 5: Solve for x
x = 5,903,173,758.61/75,700.68 - Step 6: Final answer
x = 77,980.46
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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.