Finding the Fourth Proportional to 98,835.10, 136,392.23 and 53,513.12
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Solution
The fourth proportional to 98,835.10, 136,392.23 and 53,513.12 is: 73,847.99
Step by Step Solution
- Step 1: Write the proportion equation
98,835.10 : 136,392.23 = 53,513.12 : x - Step 2: Convert to fraction form
98,835.10/136,392.23 = 53,513.12/x - Step 3: Cross multiply
98,835.10x = 136,392.23 × 53,513.12 - Step 4: Simplify right side
98,835.10x = 7,298,773,771.06 - Step 5: Solve for x
x = 7,298,773,771.06/98,835.10 - Step 6: Final answer
x = 73,847.99
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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.