Finding the Fourth Proportional to 98,840.42, 148,275.12 and 31,349.94
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Solution
The fourth proportional to 98,840.42, 148,275.12 and 31,349.94 is: 47,029.50
Step by Step Solution
- Step 1: Write the proportion equation
98,840.42 : 148,275.12 = 31,349.94 : x - Step 2: Convert to fraction form
98,840.42/148,275.12 = 31,349.94/x - Step 3: Cross multiply
98,840.42x = 148,275.12 × 31,349.94 - Step 4: Simplify right side
98,840.42x = 4,648,415,677.02 - Step 5: Solve for x
x = 4,648,415,677.02/98,840.42 - Step 6: Final answer
x = 47,029.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.