Finding the Fourth Proportional to 83,864.74, 115,731.44 and 48,075.84
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Solution
The fourth proportional to 83,864.74, 115,731.44 and 48,075.84 is: 66,343.57
Step by Step Solution
- Step 1: Write the proportion equation
83,864.74 : 115,731.44 = 48,075.84 : x - Step 2: Convert to fraction form
83,864.74/115,731.44 = 48,075.84/x - Step 3: Cross multiply
83,864.74x = 115,731.44 × 48,075.84 - Step 4: Simplify right side
83,864.74x = 5,563,886,192.41 - Step 5: Solve for x
x = 5,563,886,192.41/83,864.74 - Step 6: Final answer
x = 66,343.57
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1.5x scale
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.