Finding the Fourth Proportional to 98,309.20, 135,671.88 and 53,600.08
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Solution
The fourth proportional to 98,309.20, 135,671.88 and 53,600.08 is: 73,970.94
Step by Step Solution
- Step 1: Write the proportion equation
98,309.20 : 135,671.88 = 53,600.08 : x - Step 2: Convert to fraction form
98,309.20/135,671.88 = 53,600.08/x - Step 3: Cross multiply
98,309.20x = 135,671.88 × 53,600.08 - Step 4: Simplify right side
98,309.20x = 7,272,023,621.75 - Step 5: Solve for x
x = 7,272,023,621.75/98,309.20 - Step 6: Final answer
x = 73,970.94
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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.