Finding the Fourth Proportional to 76,685.19, 115,031.85 and 24,098.79
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Solution
The fourth proportional to 76,685.19, 115,031.85 and 24,098.79 is: 36,149.46
Step by Step Solution
- Step 1: Write the proportion equation
76,685.19 : 115,031.85 = 24,098.79 : x - Step 2: Convert to fraction form
76,685.19/115,031.85 = 24,098.79/x - Step 3: Cross multiply
76,685.19x = 115,031.85 × 24,098.79 - Step 4: Simplify right side
76,685.19x = 2,772,128,396.46 - Step 5: Solve for x
x = 2,772,128,396.46/76,685.19 - Step 6: Final answer
x = 36,149.46
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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.