Finding the Fourth Proportional to 83,402.84, 125,117.04 and 28,011.80
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Solution
The fourth proportional to 83,402.84, 125,117.04 and 28,011.80 is: 42,021.99
Step by Step Solution
- Step 1: Write the proportion equation
83,402.84 : 125,117.04 = 28,011.80 : x - Step 2: Convert to fraction form
83,402.84/125,117.04 = 28,011.80/x - Step 3: Cross multiply
83,402.84x = 125,117.04 × 28,011.80 - Step 4: Simplify right side
83,402.84x = 3,504,753,501.07 - Step 5: Solve for x
x = 3,504,753,501.07/83,402.84 - Step 6: Final answer
x = 42,021.99
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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.