Finding the Fourth Proportional to 71,555.31, 107,335.88 and 18,248.67
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Solution
The fourth proportional to 71,555.31, 107,335.88 and 18,248.67 is: 27,373.75
Step by Step Solution
- Step 1: Write the proportion equation
71,555.31 : 107,335.88 = 18,248.67 : x - Step 2: Convert to fraction form
71,555.31/107,335.88 = 18,248.67/x - Step 3: Cross multiply
71,555.31x = 107,335.88 × 18,248.67 - Step 4: Simplify right side
71,555.31x = 1,958,736,962.04 - Step 5: Solve for x
x = 1,958,736,962.04/71,555.31 - Step 6: Final answer
x = 27,373.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.