Finding the Fourth Proportional to 77,139.19, 115,692.58 and 29,737.99
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Solution
The fourth proportional to 77,139.19, 115,692.58 and 29,737.99 is: 44,600.74
Step by Step Solution
- Step 1: Write the proportion equation
77,139.19 : 115,692.58 = 29,737.99 : x - Step 2: Convert to fraction form
77,139.19/115,692.58 = 29,737.99/x - Step 3: Cross multiply
77,139.19x = 115,692.58 × 29,737.99 - Step 4: Simplify right side
77,139.19x = 3,440,464,787.11 - Step 5: Solve for x
x = 3,440,464,787.11/77,139.19 - Step 6: Final answer
x = 44,600.74
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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.