Finding the Fourth Proportional to 83,533.76, 115,276.09 and 45,292.92
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Solution
The fourth proportional to 83,533.76, 115,276.09 and 45,292.92 is: 62,503.95
Step by Step Solution
- Step 1: Write the proportion equation
83,533.76 : 115,276.09 = 45,292.92 : x - Step 2: Convert to fraction form
83,533.76/115,276.09 = 45,292.92/x - Step 3: Cross multiply
83,533.76x = 115,276.09 × 45,292.92 - Step 4: Simplify right side
83,533.76x = 5,221,189,919.44 - Step 5: Solve for x
x = 5,221,189,919.44/83,533.76 - Step 6: Final answer
x = 62,503.95
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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.