Finding the Fourth Proportional to 77,883.68, 107,479.41 and 42,073.67
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Solution
The fourth proportional to 77,883.68, 107,479.41 and 42,073.67 is: 58,061.63
Step by Step Solution
- Step 1: Write the proportion equation
77,883.68 : 107,479.41 = 42,073.67 : x - Step 2: Convert to fraction form
77,883.68/107,479.41 = 42,073.67/x - Step 3: Cross multiply
77,883.68x = 107,479.41 × 42,073.67 - Step 4: Simplify right side
77,883.68x = 4,522,053,228.13 - Step 5: Solve for x
x = 4,522,053,228.13/77,883.68 - Step 6: Final answer
x = 58,061.63
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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.