Finding the Fourth Proportional to 74,931.10, 112,440.98 and 27,579.45
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Solution
The fourth proportional to 74,931.10, 112,440.98 and 27,579.45 is: 41,385.49
Step by Step Solution
- Step 1: Write the proportion equation
74,931.10 : 112,440.98 = 27,579.45 : x - Step 2: Convert to fraction form
74,931.10/112,440.98 = 27,579.45/x - Step 3: Cross multiply
74,931.10x = 112,440.98 × 27,579.45 - Step 4: Simplify right side
74,931.10x = 3,101,060,560.22 - Step 5: Solve for x
x = 3,101,060,560.22/74,931.10 - Step 6: Final answer
x = 41,385.49
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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.