Finding the Fourth Proportional to 86,277.08, 129,390.08 and 38,864.76
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Solution
The fourth proportional to 86,277.08, 129,390.08 and 38,864.76 is: 58,285.64
Step by Step Solution
- Step 1: Write the proportion equation
86,277.08 : 129,390.08 = 38,864.76 : x - Step 2: Convert to fraction form
86,277.08/129,390.08 = 38,864.76/x - Step 3: Cross multiply
86,277.08x = 129,390.08 × 38,864.76 - Step 4: Simplify right side
86,277.08x = 5,028,714,211.26 - Step 5: Solve for x
x = 5,028,714,211.26/86,277.08 - Step 6: Final answer
x = 58,285.64
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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.