Finding the Fourth Proportional to 91,135.99, 125,717.12 and 53,402.95
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Solution
The fourth proportional to 91,135.99, 125,717.12 and 53,402.95 is: 73,666.45
Step by Step Solution
- Step 1: Write the proportion equation
91,135.99 : 125,717.12 = 53,402.95 : x - Step 2: Convert to fraction form
91,135.99/125,717.12 = 53,402.95/x - Step 3: Cross multiply
91,135.99x = 125,717.12 × 53,402.95 - Step 4: Simplify right side
91,135.99x = 6,713,664,692.46 - Step 5: Solve for x
x = 6,713,664,692.46/91,135.99 - Step 6: Final answer
x = 73,666.45
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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.