Finding the Fourth Proportional to 99,320.51, 137,059.41 and 56,303.99
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Solution
The fourth proportional to 99,320.51, 137,059.41 and 56,303.99 is: 77,697.86
Step by Step Solution
- Step 1: Write the proportion equation
99,320.51 : 137,059.41 = 56,303.99 : x - Step 2: Convert to fraction form
99,320.51/137,059.41 = 56,303.99/x - Step 3: Cross multiply
99,320.51x = 137,059.41 × 56,303.99 - Step 4: Simplify right side
99,320.51x = 7,716,990,964.75 - Step 5: Solve for x
x = 7,716,990,964.75/99,320.51 - Step 6: Final answer
x = 77,697.86
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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.