Finding the Fourth Proportional to 101,289.06, 139,776.48 and 55,964.70
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Solution
The fourth proportional to 101,289.06, 139,776.48 and 55,964.70 is: 77,229.95
Step by Step Solution
- Step 1: Write the proportion equation
101,289.06 : 139,776.48 = 55,964.70 : x - Step 2: Convert to fraction form
101,289.06/139,776.48 = 55,964.70/x - Step 3: Cross multiply
101,289.06x = 139,776.48 × 55,964.70 - Step 4: Simplify right side
101,289.06x = 7,822,548,770.26 - Step 5: Solve for x
x = 7,822,548,770.26/101,289.06 - Step 6: Final answer
x = 77,229.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.