Finding the Fourth Proportional to 91,228.80, 125,886.81 and 62,572.94
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Solution
The fourth proportional to 91,228.80, 125,886.81 and 62,572.94 is: 86,344.53
Step by Step Solution
- Step 1: Write the proportion equation
91,228.80 : 125,886.81 = 62,572.94 : x - Step 2: Convert to fraction form
91,228.80/125,886.81 = 62,572.94/x - Step 3: Cross multiply
91,228.80x = 125,886.81 × 62,572.94 - Step 4: Simplify right side
91,228.80x = 7,877,107,534.24 - Step 5: Solve for x
x = 7,877,107,534.24/91,228.80 - Step 6: Final answer
x = 86,344.53
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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.