Finding the Fourth Proportional to 74,312.08, 111,488.78 and 29,928.44
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Solution
The fourth proportional to 74,312.08, 111,488.78 and 29,928.44 is: 44,900.99
Step by Step Solution
- Step 1: Write the proportion equation
74,312.08 : 111,488.78 = 29,928.44 : x - Step 2: Convert to fraction form
74,312.08/111,488.78 = 29,928.44/x - Step 3: Cross multiply
74,312.08x = 111,488.78 × 29,928.44 - Step 4: Simplify right side
74,312.08x = 3,336,685,616.45 - Step 5: Solve for x
x = 3,336,685,616.45/74,312.08 - Step 6: Final answer
x = 44,900.99
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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.