Finding the Fourth Proportional to 77,135.74, 106,502.49 and 60,158.95
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Solution
The fourth proportional to 77,135.74, 106,502.49 and 60,158.95 is: 83,062.38
Step by Step Solution
- Step 1: Write the proportion equation
77,135.74 : 106,502.49 = 60,158.95 : x - Step 2: Convert to fraction form
77,135.74/106,502.49 = 60,158.95/x - Step 3: Cross multiply
77,135.74x = 106,502.49 × 60,158.95 - Step 4: Simplify right side
77,135.74x = 6,407,077,704.53 - Step 5: Solve for x
x = 6,407,077,704.53/77,135.74 - Step 6: Final answer
x = 83,062.38
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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.