Finding the Fourth Proportional to 87,637.63, 121,039.68 and 58,907.41
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Solution
The fourth proportional to 87,637.63, 121,039.68 and 58,907.41 is: 81,359.28
Step by Step Solution
- Step 1: Write the proportion equation
87,637.63 : 121,039.68 = 58,907.41 : x - Step 2: Convert to fraction form
87,637.63/121,039.68 = 58,907.41/x - Step 3: Cross multiply
87,637.63x = 121,039.68 × 58,907.41 - Step 4: Simplify right side
87,637.63x = 7,130,134,314.76 - Step 5: Solve for x
x = 7,130,134,314.76/87,637.63 - Step 6: Final answer
x = 81,359.28
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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.