Finding the Fourth Proportional to 84,045.19, 115,980.65 and 46,319.44
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Solution
The fourth proportional to 84,045.19, 115,980.65 and 46,319.44 is: 63,919.88
Step by Step Solution
- Step 1: Write the proportion equation
84,045.19 : 115,980.65 = 46,319.44 : x - Step 2: Convert to fraction form
84,045.19/115,980.65 = 46,319.44/x - Step 3: Cross multiply
84,045.19x = 115,980.65 × 46,319.44 - Step 4: Simplify right side
84,045.19x = 5,372,158,758.84 - Step 5: Solve for x
x = 5,372,158,758.84/84,045.19 - Step 6: Final answer
x = 63,919.88
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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.