Finding the Fourth Proportional to 84,986.24, 117,267.36 and 47,259.68
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Solution
The fourth proportional to 84,986.24, 117,267.36 and 47,259.68 is: 65,210.77
Step by Step Solution
- Step 1: Write the proportion equation
84,986.24 : 117,267.36 = 47,259.68 : x - Step 2: Convert to fraction form
84,986.24/117,267.36 = 47,259.68/x - Step 3: Cross multiply
84,986.24x = 117,267.36 × 47,259.68 - Step 4: Simplify right side
84,986.24x = 5,542,017,908.04 - Step 5: Solve for x
x = 5,542,017,908.04/84,986.24 - Step 6: Final answer
x = 65,210.77
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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.