Finding the Fourth Proportional to 86,542.02, 119,423.16 and 48,813.84
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Solution
The fourth proportional to 86,542.02, 119,423.16 and 48,813.84 is: 67,360.38
Step by Step Solution
- Step 1: Write the proportion equation
86,542.02 : 119,423.16 = 48,813.84 : x - Step 2: Convert to fraction form
86,542.02/119,423.16 = 48,813.84/x - Step 3: Cross multiply
86,542.02x = 119,423.16 × 48,813.84 - Step 4: Simplify right side
86,542.02x = 5,829,503,024.53 - Step 5: Solve for x
x = 5,829,503,024.53/86,542.02 - Step 6: Final answer
x = 67,360.38
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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.