Finding the Fourth Proportional to 76,210.56, 104,938.80 and 67,588.80
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Solution
The fourth proportional to 76,210.56, 104,938.80 and 67,588.80 is: 93,066.99
Step by Step Solution
- Step 1: Write the proportion equation
76,210.56 : 104,938.80 = 67,588.80 : x - Step 2: Convert to fraction form
76,210.56/104,938.80 = 67,588.80/x - Step 3: Cross multiply
76,210.56x = 104,938.80 × 67,588.80 - Step 4: Simplify right side
76,210.56x = 7,092,687,565.44 - Step 5: Solve for x
x = 7,092,687,565.44/76,210.56 - Step 6: Final answer
x = 93,066.99
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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.