Finding the Fourth Proportional to 75,468.54, 113,206.68 and 19,309.13
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Solution
The fourth proportional to 75,468.54, 113,206.68 and 19,309.13 is: 28,964.68
Step by Step Solution
- Step 1: Write the proportion equation
75,468.54 : 113,206.68 = 19,309.13 : x - Step 2: Convert to fraction form
75,468.54/113,206.68 = 19,309.13/x - Step 3: Cross multiply
75,468.54x = 113,206.68 × 19,309.13 - Step 4: Simplify right side
75,468.54x = 2,185,921,934.96 - Step 5: Solve for x
x = 2,185,921,934.96/75,468.54 - Step 6: Final answer
x = 28,964.68
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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.