Finding the Fourth Proportional to 75,242.18, 103,813.20 and 59,277.08
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Solution
The fourth proportional to 75,242.18, 103,813.20 and 59,277.08 is: 81,785.82
Step by Step Solution
- Step 1: Write the proportion equation
75,242.18 : 103,813.20 = 59,277.08 : x - Step 2: Convert to fraction form
75,242.18/103,813.20 = 59,277.08/x - Step 3: Cross multiply
75,242.18x = 103,813.20 × 59,277.08 - Step 4: Simplify right side
75,242.18x = 6,153,743,361.46 - Step 5: Solve for x
x = 6,153,743,361.46/75,242.18 - Step 6: Final answer
x = 81,785.82
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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.