Finding the Fourth Proportional to 77,470.14, 106,883.64 and 45,197.58
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Solution
The fourth proportional to 77,470.14, 106,883.64 and 45,197.58 is: 62,357.99
Step by Step Solution
- Step 1: Write the proportion equation
77,470.14 : 106,883.64 = 45,197.58 : x - Step 2: Convert to fraction form
77,470.14/106,883.64 = 45,197.58/x - Step 3: Cross multiply
77,470.14x = 106,883.64 × 45,197.58 - Step 4: Simplify right side
77,470.14x = 4,830,881,869.59 - Step 5: Solve for x
x = 4,830,881,869.59/77,470.14 - Step 6: Final answer
x = 62,357.99
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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.