Finding the Fourth Proportional to 75,569.20, 113,353.80 and 63,905.20
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Solution
The fourth proportional to 75,569.20, 113,353.80 and 63,905.20 is: 95,857.80
Step by Step Solution
- Step 1: Write the proportion equation
75,569.20 : 113,353.80 = 63,905.20 : x - Step 2: Convert to fraction form
75,569.20/113,353.80 = 63,905.20/x - Step 3: Cross multiply
75,569.20x = 113,353.80 × 63,905.20 - Step 4: Simplify right side
75,569.20x = 7,243,897,259.76 - Step 5: Solve for x
x = 7,243,897,259.76/75,569.20 - Step 6: Final answer
x = 95,857.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.