Finding the Fourth Proportional to 85,534.34, 128,306.76 and 32,943.98
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Solution
The fourth proportional to 85,534.34, 128,306.76 and 32,943.98 is: 49,417.99
Step by Step Solution
- Step 1: Write the proportion equation
85,534.34 : 128,306.76 = 32,943.98 : x - Step 2: Convert to fraction form
85,534.34/128,306.76 = 32,943.98/x - Step 3: Cross multiply
85,534.34x = 128,306.76 × 32,943.98 - Step 4: Simplify right side
85,534.34x = 4,226,935,335.30 - Step 5: Solve for x
x = 4,226,935,335.30/85,534.34 - Step 6: Final answer
x = 49,417.99
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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.