Finding the Fourth Proportional to 78,234.64, 117,305.08 and 24,903.58
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Solution
The fourth proportional to 78,234.64, 117,305.08 and 24,903.58 is: 37,340.45
Step by Step Solution
- Step 1: Write the proportion equation
78,234.64 : 117,305.08 = 24,903.58 : x - Step 2: Convert to fraction form
78,234.64/117,305.08 = 24,903.58/x - Step 3: Cross multiply
78,234.64x = 117,305.08 × 24,903.58 - Step 4: Simplify right side
78,234.64x = 2,921,316,444.19 - Step 5: Solve for x
x = 2,921,316,444.19/78,234.64 - Step 6: Final answer
x = 37,340.45
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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.