Finding the Fourth Proportional to 90,614.67, 135,828.99 and 31,417.98
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Solution
The fourth proportional to 90,614.67, 135,828.99 and 31,417.98 is: 47,094.72
Step by Step Solution
- Step 1: Write the proportion equation
90,614.67 : 135,828.99 = 31,417.98 : x - Step 2: Convert to fraction form
90,614.67/135,828.99 = 31,417.98/x - Step 3: Cross multiply
90,614.67x = 135,828.99 × 31,417.98 - Step 4: Simplify right side
90,614.67x = 4,267,472,491.24 - Step 5: Solve for x
x = 4,267,472,491.24/90,614.67 - Step 6: Final answer
x = 47,094.72
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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.