Finding the Fourth Proportional to 75,243.18, 103,814.58 and 59,278.08
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Solution
The fourth proportional to 75,243.18, 103,814.58 and 59,278.08 is: 81,787.20
Step by Step Solution
- Step 1: Write the proportion equation
75,243.18 : 103,814.58 = 59,278.08 : x - Step 2: Convert to fraction form
75,243.18/103,814.58 = 59,278.08/x - Step 3: Cross multiply
75,243.18x = 103,814.58 × 59,278.08 - Step 4: Simplify right side
75,243.18x = 6,153,928,978.41 - Step 5: Solve for x
x = 6,153,928,978.41/75,243.18 - Step 6: Final answer
x = 81,787.20
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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.