Finding the Fourth Proportional to 99,652.06, 137,502.93 and 57,209.68
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Solution
The fourth proportional to 99,652.06, 137,502.93 and 57,209.68 is: 78,939.65
Step by Step Solution
- Step 1: Write the proportion equation
99,652.06 : 137,502.93 = 57,209.68 : x - Step 2: Convert to fraction form
99,652.06/137,502.93 = 57,209.68/x - Step 3: Cross multiply
99,652.06x = 137,502.93 × 57,209.68 - Step 4: Simplify right side
99,652.06x = 7,866,498,624.36 - Step 5: Solve for x
x = 7,866,498,624.36/99,652.06 - Step 6: Final answer
x = 78,939.65
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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.