Finding the Fourth Proportional to 86,869.23, 130,214.62 and 49,349.18
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Solution
The fourth proportional to 86,869.23, 130,214.62 and 49,349.18 is: 73,973.09
Step by Step Solution
- Step 1: Write the proportion equation
86,869.23 : 130,214.62 = 49,349.18 : x - Step 2: Convert to fraction form
86,869.23/130,214.62 = 49,349.18/x - Step 3: Cross multiply
86,869.23x = 130,214.62 × 49,349.18 - Step 4: Simplify right side
86,869.23x = 6,425,985,108.23 - Step 5: Solve for x
x = 6,425,985,108.23/86,869.23 - Step 6: Final answer
x = 73,973.09
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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.