Finding the Fourth Proportional to 70,817.68, 106,267.56 and 26,442.78
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Solution
The fourth proportional to 70,817.68, 106,267.56 and 26,442.78 is: 39,679.49
Step by Step Solution
- Step 1: Write the proportion equation
70,817.68 : 106,267.56 = 26,442.78 : x - Step 2: Convert to fraction form
70,817.68/106,267.56 = 26,442.78/x - Step 3: Cross multiply
70,817.68x = 106,267.56 × 26,442.78 - Step 4: Simplify right side
70,817.68x = 2,810,009,710.22 - Step 5: Solve for x
x = 2,810,009,710.22/70,817.68 - Step 6: Final answer
x = 39,679.49
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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.