Finding the Fourth Proportional to 90,489.42, 124,875.69 and 50,203.98
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Solution
The fourth proportional to 90,489.42, 124,875.69 and 50,203.98 is: 69,281.65
Step by Step Solution
- Step 1: Write the proportion equation
90,489.42 : 124,875.69 = 50,203.98 : x - Step 2: Convert to fraction form
90,489.42/124,875.69 = 50,203.98/x - Step 3: Cross multiply
90,489.42x = 124,875.69 × 50,203.98 - Step 4: Simplify right side
90,489.42x = 6,269,256,643.25 - Step 5: Solve for x
x = 6,269,256,643.25/90,489.42 - Step 6: Final answer
x = 69,281.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.