Finding the Fourth Proportional to 81,140.93, 121,722.90 and 24,985.70
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Solution
The fourth proportional to 81,140.93, 121,722.90 and 24,985.70 is: 37,482.09
Step by Step Solution
- Step 1: Write the proportion equation
81,140.93 : 121,722.90 = 24,985.70 : x - Step 2: Convert to fraction form
81,140.93/121,722.90 = 24,985.70/x - Step 3: Cross multiply
81,140.93x = 121,722.90 × 24,985.70 - Step 4: Simplify right side
81,140.93x = 3,041,331,862.53 - Step 5: Solve for x
x = 3,041,331,862.53/81,140.93 - Step 6: Final answer
x = 37,482.09
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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.