Finding the Fourth Proportional to 78,555.24, 117,832.86 and 64,675.08
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Solution
The fourth proportional to 78,555.24, 117,832.86 and 64,675.08 is: 97,012.62
Step by Step Solution
- Step 1: Write the proportion equation
78,555.24 : 117,832.86 = 64,675.08 : x - Step 2: Convert to fraction form
78,555.24/117,832.86 = 64,675.08/x - Step 3: Cross multiply
78,555.24x = 117,832.86 × 64,675.08 - Step 4: Simplify right side
78,555.24x = 7,620,849,647.13 - Step 5: Solve for x
x = 7,620,849,647.13/78,555.24 - Step 6: Final answer
x = 97,012.62
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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.