Finding the Fourth Proportional to 98,270.08, 135,612.88 and 55,842.32
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Solution
The fourth proportional to 98,270.08, 135,612.88 and 55,842.32 is: 77,062.50
Step by Step Solution
- Step 1: Write the proportion equation
98,270.08 : 135,612.88 = 55,842.32 : x - Step 2: Convert to fraction form
98,270.08/135,612.88 = 55,842.32/x - Step 3: Cross multiply
98,270.08x = 135,612.88 × 55,842.32 - Step 4: Simplify right side
98,270.08x = 7,572,937,841.08 - Step 5: Solve for x
x = 7,572,937,841.08/98,270.08 - Step 6: Final answer
x = 77,062.50
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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.