Finding the Fourth Proportional to 86,489.60, 119,215.68 and 62,617.60
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Solution
The fourth proportional to 86,489.60, 119,215.68 and 62,617.60 is: 86,310.95
Step by Step Solution
- Step 1: Write the proportion equation
86,489.60 : 119,215.68 = 62,617.60 : x - Step 2: Convert to fraction form
86,489.60/119,215.68 = 62,617.60/x - Step 3: Cross multiply
86,489.60x = 119,215.68 × 62,617.60 - Step 4: Simplify right side
86,489.60x = 7,464,999,763.97 - Step 5: Solve for x
x = 7,464,999,763.97/86,489.60 - Step 6: Final answer
x = 86,310.95
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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.