Finding the Fourth Proportional to 101,760.40, 140,437.98 and 56,452.99
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Solution
The fourth proportional to 101,760.40, 140,437.98 and 56,452.99 is: 77,909.91
Step by Step Solution
- Step 1: Write the proportion equation
101,760.40 : 140,437.98 = 56,452.99 : x - Step 2: Convert to fraction form
101,760.40/140,437.98 = 56,452.99/x - Step 3: Cross multiply
101,760.40x = 140,437.98 × 56,452.99 - Step 4: Simplify right side
101,760.40x = 7,928,143,880.56 - Step 5: Solve for x
x = 7,928,143,880.56/101,760.40 - Step 6: Final answer
x = 77,909.91
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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.