Finding the Fourth Proportional to 86,902.74, 130,248.84 and 36,877.75
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Solution
The fourth proportional to 86,902.74, 130,248.84 and 36,877.75 is: 55,271.95
Step by Step Solution
- Step 1: Write the proportion equation
86,902.74 : 130,248.84 = 36,877.75 : x - Step 2: Convert to fraction form
86,902.74/130,248.84 = 36,877.75/x - Step 3: Cross multiply
86,902.74x = 130,248.84 × 36,877.75 - Step 4: Simplify right side
86,902.74x = 4,803,284,159.31 - Step 5: Solve for x
x = 4,803,284,159.31/86,902.74 - Step 6: Final answer
x = 55,271.95
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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.