Finding the Fourth Proportional to 75,406.57, 113,109.78 and 19,246.68
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Solution
The fourth proportional to 75,406.57, 113,109.78 and 19,246.68 is: 28,870.00
Step by Step Solution
- Step 1: Write the proportion equation
75,406.57 : 113,109.78 = 19,246.68 : x - Step 2: Convert to fraction form
75,406.57/113,109.78 = 19,246.68/x - Step 3: Cross multiply
75,406.57x = 113,109.78 × 19,246.68 - Step 4: Simplify right side
75,406.57x = 2,176,987,740.53 - Step 5: Solve for x
x = 2,176,987,740.53/75,406.57 - Step 6: Final answer
x = 28,870.00
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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.