Finding the Fourth Proportional to 86,239.98, 129,507.12 and 46,873.98
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Solution
The fourth proportional to 86,239.98, 129,507.12 and 46,873.98 is: 70,390.95
Step by Step Solution
- Step 1: Write the proportion equation
86,239.98 : 129,507.12 = 46,873.98 : x - Step 2: Convert to fraction form
86,239.98/129,507.12 = 46,873.98/x - Step 3: Cross multiply
86,239.98x = 129,507.12 × 46,873.98 - Step 4: Simplify right side
86,239.98x = 6,070,514,152.74 - Step 5: Solve for x
x = 6,070,514,152.74/86,239.98 - Step 6: Final answer
x = 70,390.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.