Finding the Fourth Proportional to 90,031.99, 135,048.05 and 23,471.95
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Solution
The fourth proportional to 90,031.99, 135,048.05 and 23,471.95 is: 35,207.94
Step by Step Solution
- Step 1: Write the proportion equation
90,031.99 : 135,048.05 = 23,471.95 : x - Step 2: Convert to fraction form
90,031.99/135,048.05 = 23,471.95/x - Step 3: Cross multiply
90,031.99x = 135,048.05 × 23,471.95 - Step 4: Simplify right side
90,031.99x = 3,169,841,077.20 - Step 5: Solve for x
x = 3,169,841,077.20/90,031.99 - Step 6: Final answer
x = 35,207.94
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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.