Finding the Fourth Proportional to 83,570.68, 115,309.80 and 49,590.23
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Solution
The fourth proportional to 83,570.68, 115,309.80 and 49,590.23 is: 68,423.99
Step by Step Solution
- Step 1: Write the proportion equation
83,570.68 : 115,309.80 = 49,590.23 : x - Step 2: Convert to fraction form
83,570.68/115,309.80 = 49,590.23/x - Step 3: Cross multiply
83,570.68x = 115,309.80 × 49,590.23 - Step 4: Simplify right side
83,570.68x = 5,718,239,066.18 - Step 5: Solve for x
x = 5,718,239,066.18/83,570.68 - Step 6: Final answer
x = 68,423.99
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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.