Finding the Fourth Proportional to 90,217.24, 124,492.08 and 49,931.08
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Solution
The fourth proportional to 90,217.24, 124,492.08 and 49,931.08 is: 68,900.62
Step by Step Solution
- Step 1: Write the proportion equation
90,217.24 : 124,492.08 = 49,931.08 : x - Step 2: Convert to fraction form
90,217.24/124,492.08 = 49,931.08/x - Step 3: Cross multiply
90,217.24x = 124,492.08 × 49,931.08 - Step 4: Simplify right side
90,217.24x = 6,216,024,005.85 - Step 5: Solve for x
x = 6,216,024,005.85/90,217.24 - Step 6: Final answer
x = 68,900.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.