Finding the Fourth Proportional to 83,995.44, 125,925.12 and 31,397.28
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Solution
The fourth proportional to 83,995.44, 125,925.12 and 31,397.28 is: 47,070.49
Step by Step Solution
- Step 1: Write the proportion equation
83,995.44 : 125,925.12 = 31,397.28 : x - Step 2: Convert to fraction form
83,995.44/125,925.12 = 31,397.28/x - Step 3: Cross multiply
83,995.44x = 125,925.12 × 31,397.28 - Step 4: Simplify right side
83,995.44x = 3,953,706,251.67 - Step 5: Solve for x
x = 3,953,706,251.67/83,995.44 - Step 6: Final answer
x = 47,070.49
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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.