Finding the Fourth Proportional to 73,400.09, 110,141.70 and 31,275.74
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Solution
The fourth proportional to 73,400.09, 110,141.70 and 31,275.74 is: 46,931.32
Step by Step Solution
- Step 1: Write the proportion equation
73,400.09 : 110,141.70 = 31,275.74 : x - Step 2: Convert to fraction form
73,400.09/110,141.70 = 31,275.74/x - Step 3: Cross multiply
73,400.09x = 110,141.70 × 31,275.74 - Step 4: Simplify right side
73,400.09x = 3,444,762,621.65 - Step 5: Solve for x
x = 3,444,762,621.65/73,400.09 - Step 6: Final answer
x = 46,931.32
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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.