Finding the Fourth Proportional to 93,778.08, 129,399.84 and 56,965.19
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Solution
The fourth proportional to 93,778.08, 129,399.84 and 56,965.19 is: 78,603.51
Step by Step Solution
- Step 1: Write the proportion equation
93,778.08 : 129,399.84 = 56,965.19 : x - Step 2: Convert to fraction form
93,778.08/129,399.84 = 56,965.19/x - Step 3: Cross multiply
93,778.08x = 129,399.84 × 56,965.19 - Step 4: Simplify right side
93,778.08x = 7,371,285,824.57 - Step 5: Solve for x
x = 7,371,285,824.57/93,778.08 - Step 6: Final answer
x = 78,603.51
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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.