Finding the Fourth Proportional to 74,653.34, 103,126.10 and 51,980.99
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Solution
The fourth proportional to 74,653.34, 103,126.10 and 51,980.99 is: 71,806.51
Step by Step Solution
- Step 1: Write the proportion equation
74,653.34 : 103,126.10 = 51,980.99 : x - Step 2: Convert to fraction form
74,653.34/103,126.10 = 51,980.99/x - Step 3: Cross multiply
74,653.34x = 103,126.10 × 51,980.99 - Step 4: Simplify right side
74,653.34x = 5,360,595,997.30 - Step 5: Solve for x
x = 5,360,595,997.30/74,653.34 - Step 6: Final answer
x = 71,806.51
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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.