Finding the Fourth Proportional to 83,730.74, 115,519.84 and 51,888.02
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Solution
The fourth proportional to 83,730.74, 115,519.84 and 51,888.02 is: 71,587.75
Step by Step Solution
- Step 1: Write the proportion equation
83,730.74 : 115,519.84 = 51,888.02 : x - Step 2: Convert to fraction form
83,730.74/115,519.84 = 51,888.02/x - Step 3: Cross multiply
83,730.74x = 115,519.84 × 51,888.02 - Step 4: Simplify right side
83,730.74x = 5,994,095,061.00 - Step 5: Solve for x
x = 5,994,095,061.00/83,730.74 - Step 6: Final answer
x = 71,587.75
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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.