Finding the Fourth Proportional to 71,800.21, 107,692.71 and 19,215.01
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Solution
The fourth proportional to 71,800.21, 107,692.71 and 19,215.01 is: 28,820.48
Step by Step Solution
- Step 1: Write the proportion equation
71,800.21 : 107,692.71 = 19,215.01 : x - Step 2: Convert to fraction form
71,800.21/107,692.71 = 19,215.01/x - Step 3: Cross multiply
71,800.21x = 107,692.71 × 19,215.01 - Step 4: Simplify right side
71,800.21x = 2,069,316,499.58 - Step 5: Solve for x
x = 2,069,316,499.58/71,800.21 - Step 6: Final answer
x = 28,820.48
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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.