Finding the Fourth Proportional to 98,561.08, 136,038.60 and 56,144.68
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Solution
The fourth proportional to 98,561.08, 136,038.60 and 56,144.68 is: 77,493.51
Step by Step Solution
- Step 1: Write the proportion equation
98,561.08 : 136,038.60 = 56,144.68 : x - Step 2: Convert to fraction form
98,561.08/136,038.60 = 56,144.68/x - Step 3: Cross multiply
98,561.08x = 136,038.60 × 56,144.68 - Step 4: Simplify right side
98,561.08x = 7,637,843,664.65 - Step 5: Solve for x
x = 7,637,843,664.65/98,561.08 - Step 6: Final answer
x = 77,493.51
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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.