Finding the Fourth Proportional to 94,374.18, 130,231.80 and 51,931.80
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Solution
The fourth proportional to 94,374.18, 130,231.80 and 51,931.80 is: 71,663.37
Step by Step Solution
- Step 1: Write the proportion equation
94,374.18 : 130,231.80 = 51,931.80 : x - Step 2: Convert to fraction form
94,374.18/130,231.80 = 51,931.80/x - Step 3: Cross multiply
94,374.18x = 130,231.80 × 51,931.80 - Step 4: Simplify right side
94,374.18x = 6,763,171,791.24 - Step 5: Solve for x
x = 6,763,171,791.24/94,374.18 - Step 6: Final answer
x = 71,663.37
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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.