Finding the Fourth Proportional to 74,177.85, 102,424.08 and 68,510.31
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Solution
The fourth proportional to 74,177.85, 102,424.08 and 68,510.31 is: 94,598.39
Step by Step Solution
- Step 1: Write the proportion equation
74,177.85 : 102,424.08 = 68,510.31 : x - Step 2: Convert to fraction form
74,177.85/102,424.08 = 68,510.31/x - Step 3: Cross multiply
74,177.85x = 102,424.08 × 68,510.31 - Step 4: Simplify right side
74,177.85x = 7,017,105,472.26 - Step 5: Solve for x
x = 7,017,105,472.26/74,177.85 - Step 6: Final answer
x = 94,598.39
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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.