Finding the Fourth Proportional to 79,930.99, 110,308.80 and 53,027.65
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Solution
The fourth proportional to 79,930.99, 110,308.80 and 53,027.65 is: 73,180.83
Step by Step Solution
- Step 1: Write the proportion equation
79,930.99 : 110,308.80 = 53,027.65 : x - Step 2: Convert to fraction form
79,930.99/110,308.80 = 53,027.65/x - Step 3: Cross multiply
79,930.99x = 110,308.80 × 53,027.65 - Step 4: Simplify right side
79,930.99x = 5,849,416,438.32 - Step 5: Solve for x
x = 5,849,416,438.32/79,930.99 - Step 6: Final answer
x = 73,180.83
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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.