Finding the Fourth Proportional to 76,589.49, 114,901.95 and 25,985.79
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Solution
The fourth proportional to 76,589.49, 114,901.95 and 25,985.79 is: 38,984.70
Step by Step Solution
- Step 1: Write the proportion equation
76,589.49 : 114,901.95 = 25,985.79 : x - Step 2: Convert to fraction form
76,589.49/114,901.95 = 25,985.79/x - Step 3: Cross multiply
76,589.49x = 114,901.95 × 25,985.79 - Step 4: Simplify right side
76,589.49x = 2,985,817,943.29 - Step 5: Solve for x
x = 2,985,817,943.29/76,589.49 - Step 6: Final answer
x = 38,984.70
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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.