Finding the Fourth Proportional to 86,246.70, 129,102.48 and 46,705.74
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Solution
The fourth proportional to 86,246.70, 129,102.48 and 46,705.74 is: 69,913.71
Step by Step Solution
- Step 1: Write the proportion equation
86,246.70 : 129,102.48 = 46,705.74 : x - Step 2: Convert to fraction form
86,246.70/129,102.48 = 46,705.74/x - Step 3: Cross multiply
86,246.70x = 129,102.48 × 46,705.74 - Step 4: Simplify right side
86,246.70x = 6,029,826,864.24 - Step 5: Solve for x
x = 6,029,826,864.24/86,246.70 - Step 6: Final answer
x = 69,913.71
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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.