Finding the Fourth Proportional to 89,281.58, 133,922.36 and 69,574.88
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Solution
The fourth proportional to 89,281.58, 133,922.36 and 69,574.88 is: 104,362.32
Step by Step Solution
- Step 1: Write the proportion equation
89,281.58 : 133,922.36 = 69,574.88 : x - Step 2: Convert to fraction form
89,281.58/133,922.36 = 69,574.88/x - Step 3: Cross multiply
89,281.58x = 133,922.36 × 69,574.88 - Step 4: Simplify right side
89,281.58x = 9,317,632,635.06 - Step 5: Solve for x
x = 9,317,632,635.06/89,281.58 - Step 6: Final answer
x = 104,362.32
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1.5x scale
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.