Finding the Fourth Proportional to 77,304.08, 115,955.16 and 21,900.08
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Solution
The fourth proportional to 77,304.08, 115,955.16 and 21,900.08 is: 32,849.85
Step by Step Solution
- Step 1: Write the proportion equation
77,304.08 : 115,955.16 = 21,900.08 : x - Step 2: Convert to fraction form
77,304.08/115,955.16 = 21,900.08/x - Step 3: Cross multiply
77,304.08x = 115,955.16 × 21,900.08 - Step 4: Simplify right side
77,304.08x = 2,539,427,280.41 - Step 5: Solve for x
x = 2,539,427,280.41/77,304.08 - Step 6: Final answer
x = 32,849.85
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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.