Finding the Fourth Proportional to 75,470.16, 113,204.08 and 19,309.79
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Solution
The fourth proportional to 75,470.16, 113,204.08 and 19,309.79 is: 28,964.39
Step by Step Solution
- Step 1: Write the proportion equation
75,470.16 : 113,204.08 = 19,309.79 : x - Step 2: Convert to fraction form
75,470.16/113,204.08 = 19,309.79/x - Step 3: Cross multiply
75,470.16x = 113,204.08 × 19,309.79 - Step 4: Simplify right side
75,470.16x = 2,185,947,319.09 - Step 5: Solve for x
x = 2,185,947,319.09/75,470.16 - Step 6: Final answer
x = 28,964.39
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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.