Finding the Fourth Proportional to 97,874.80, 135,060.75 and 57,580.75
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Solution
The fourth proportional to 97,874.80, 135,060.75 and 57,580.75 is: 79,457.63
Step by Step Solution
- Step 1: Write the proportion equation
97,874.80 : 135,060.75 = 57,580.75 : x - Step 2: Convert to fraction form
97,874.80/135,060.75 = 57,580.75/x - Step 3: Cross multiply
97,874.80x = 135,060.75 × 57,580.75 - Step 4: Simplify right side
97,874.80x = 7,776,899,280.56 - Step 5: Solve for x
x = 7,776,899,280.56/97,874.80 - Step 6: Final answer
x = 79,457.63
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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.