Finding the Fourth Proportional to 86,868.54, 130,330.50 and 38,829.74
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Solution
The fourth proportional to 86,868.54, 130,330.50 and 38,829.74 is: 58,256.99
Step by Step Solution
- Step 1: Write the proportion equation
86,868.54 : 130,330.50 = 38,829.74 : x - Step 2: Convert to fraction form
86,868.54/130,330.50 = 38,829.74/x - Step 3: Cross multiply
86,868.54x = 130,330.50 × 38,829.74 - Step 4: Simplify right side
86,868.54x = 5,060,699,429.07 - Step 5: Solve for x
x = 5,060,699,429.07/86,868.54 - Step 6: Final answer
x = 58,256.99
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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.