Finding the Fourth Proportional to 79,929.99, 110,307.42 and 53,026.65
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Solution
The fourth proportional to 79,929.99, 110,307.42 and 53,026.65 is: 73,179.45
Step by Step Solution
- Step 1: Write the proportion equation
79,929.99 : 110,307.42 = 53,026.65 : x - Step 2: Convert to fraction form
79,929.99/110,307.42 = 53,026.65/x - Step 3: Cross multiply
79,929.99x = 110,307.42 × 53,026.65 - Step 4: Simplify right side
79,929.99x = 5,849,232,952.74 - Step 5: Solve for x
x = 5,849,232,952.74/79,929.99 - Step 6: Final answer
x = 73,179.45
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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.