Finding the Fourth Proportional to 87,368.36, 130,830.20 and 57,741.80
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Solution
The fourth proportional to 87,368.36, 130,830.20 and 57,741.80 is: 86,465.75
Step by Step Solution
- Step 1: Write the proportion equation
87,368.36 : 130,830.20 = 57,741.80 : x - Step 2: Convert to fraction form
87,368.36/130,830.20 = 57,741.80/x - Step 3: Cross multiply
87,368.36x = 130,830.20 × 57,741.80 - Step 4: Simplify right side
87,368.36x = 7,554,370,953.65 - Step 5: Solve for x
x = 7,554,370,953.65/87,368.36 - Step 6: Final answer
x = 86,465.75
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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.