Finding the Fourth Proportional to 73,312.63, 101,171.36 and 39,778.63
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Solution
The fourth proportional to 73,312.63, 101,171.36 and 39,778.63 is: 54,894.47
Step by Step Solution
- Step 1: Write the proportion equation
73,312.63 : 101,171.36 = 39,778.63 : x - Step 2: Convert to fraction form
73,312.63/101,171.36 = 39,778.63/x - Step 3: Cross multiply
73,312.63x = 101,171.36 × 39,778.63 - Step 4: Simplify right side
73,312.63x = 4,024,457,942.55 - Step 5: Solve for x
x = 4,024,457,942.55/73,312.63 - Step 6: Final answer
x = 54,894.47
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.