Finding the Fourth Proportional to 79,975.79, 120,037.50 and 40,560.59
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Solution
The fourth proportional to 79,975.79, 120,037.50 and 40,560.59 is: 60,878.32
Step by Step Solution
- Step 1: Write the proportion equation
79,975.79 : 120,037.50 = 40,560.59 : x - Step 2: Convert to fraction form
79,975.79/120,037.50 = 40,560.59/x - Step 3: Cross multiply
79,975.79x = 120,037.50 × 40,560.59 - Step 4: Simplify right side
79,975.79x = 4,868,791,822.13 - Step 5: Solve for x
x = 4,868,791,822.13/79,975.79 - Step 6: Final answer
x = 60,878.32
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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.