Finding the Fourth Proportional to 93,885.24, 129,561.70 and 55,663.65
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Solution
The fourth proportional to 93,885.24, 129,561.70 and 55,663.65 is: 76,815.88
Step by Step Solution
- Step 1: Write the proportion equation
93,885.24 : 129,561.70 = 55,663.65 : x - Step 2: Convert to fraction form
93,885.24/129,561.70 = 55,663.65/x - Step 3: Cross multiply
93,885.24x = 129,561.70 × 55,663.65 - Step 4: Simplify right side
93,885.24x = 7,211,876,983.05 - Step 5: Solve for x
x = 7,211,876,983.05/93,885.24 - Step 6: Final answer
x = 76,815.88
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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.