Finding the Fourth Proportional to 112,592.40, 155,376.36 and 62,291.76
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Solution
The fourth proportional to 112,592.40, 155,376.36 and 62,291.76 is: 85,961.99
Step by Step Solution
- Step 1: Write the proportion equation
112,592.40 : 155,376.36 = 62,291.76 : x - Step 2: Convert to fraction form
112,592.40/155,376.36 = 62,291.76/x - Step 3: Cross multiply
112,592.40x = 155,376.36 × 62,291.76 - Step 4: Simplify right side
112,592.40x = 9,678,666,926.79 - Step 5: Solve for x
x = 9,678,666,926.79/112,592.40 - Step 6: Final answer
x = 85,961.99
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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.