Finding the Fourth Proportional to 92,924.13, 128,235.81 and 57,137.52
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Solution
The fourth proportional to 92,924.13, 128,235.81 and 57,137.52 is: 78,850.09
Step by Step Solution
- Step 1: Write the proportion equation
92,924.13 : 128,235.81 = 57,137.52 : x - Step 2: Convert to fraction form
92,924.13/128,235.81 = 57,137.52/x - Step 3: Cross multiply
92,924.13x = 128,235.81 × 57,137.52 - Step 4: Simplify right side
92,924.13x = 7,327,076,158.59 - Step 5: Solve for x
x = 7,327,076,158.59/92,924.13 - Step 6: Final answer
x = 78,850.09
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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.