Finding the Fourth Proportional to 76,526.38, 105,605.70 and 42,533.99
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Solution
The fourth proportional to 76,526.38, 105,605.70 and 42,533.99 is: 58,696.52
Step by Step Solution
- Step 1: Write the proportion equation
76,526.38 : 105,605.70 = 42,533.99 : x - Step 2: Convert to fraction form
76,526.38/105,605.70 = 42,533.99/x - Step 3: Cross multiply
76,526.38x = 105,605.70 × 42,533.99 - Step 4: Simplify right side
76,526.38x = 4,491,831,787.57 - Step 5: Solve for x
x = 4,491,831,787.57/76,526.38 - Step 6: Final answer
x = 58,696.52
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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.