Finding the Fourth Proportional to 101,873.92, 140,579.36 and 56,549.74
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Solution
The fourth proportional to 101,873.92, 140,579.36 and 56,549.74 is: 78,034.95
Step by Step Solution
- Step 1: Write the proportion equation
101,873.92 : 140,579.36 = 56,549.74 : x - Step 2: Convert to fraction form
101,873.92/140,579.36 = 56,549.74/x - Step 3: Cross multiply
101,873.92x = 140,579.36 × 56,549.74 - Step 4: Simplify right side
101,873.92x = 7,949,726,257.37 - Step 5: Solve for x
x = 7,949,726,257.37/101,873.92 - Step 6: Final answer
x = 78,034.95
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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.