Finding the Fourth Proportional to 83,419.14, 124,814.76 and 58,507.80
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Solution
The fourth proportional to 83,419.14, 124,814.76 and 58,507.80 is: 87,541.50
Step by Step Solution
- Step 1: Write the proportion equation
83,419.14 : 124,814.76 = 58,507.80 : x - Step 2: Convert to fraction form
83,419.14/124,814.76 = 58,507.80/x - Step 3: Cross multiply
83,419.14x = 124,814.76 × 58,507.80 - Step 4: Simplify right side
83,419.14x = 7,302,637,015.13 - Step 5: Solve for x
x = 7,302,637,015.13/83,419.14 - Step 6: Final answer
x = 87,541.50
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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.