Finding the Fourth Proportional to 70,806.80, 106,206.68 and 26,430.14
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Solution
The fourth proportional to 70,806.80, 106,206.68 and 26,430.14 is: 39,643.90
Step by Step Solution
- Step 1: Write the proportion equation
70,806.80 : 106,206.68 = 26,430.14 : x - Step 2: Convert to fraction form
70,806.80/106,206.68 = 26,430.14/x - Step 3: Cross multiply
70,806.80x = 106,206.68 × 26,430.14 - Step 4: Simplify right side
70,806.80x = 2,807,057,421.34 - Step 5: Solve for x
x = 2,807,057,421.34/70,806.80 - Step 6: Final answer
x = 39,643.90
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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.