Finding the Fourth Proportional to 70,881.84, 106,323.23 and 18,291.78
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Solution
The fourth proportional to 70,881.84, 106,323.23 and 18,291.78 is: 27,437.79
Step by Step Solution
- Step 1: Write the proportion equation
70,881.84 : 106,323.23 = 18,291.78 : x - Step 2: Convert to fraction form
70,881.84/106,323.23 = 18,291.78/x - Step 3: Cross multiply
70,881.84x = 106,323.23 × 18,291.78 - Step 4: Simplify right side
70,881.84x = 1,944,841,040.59 - Step 5: Solve for x
x = 1,944,841,040.59/70,881.84 - Step 6: Final answer
x = 27,437.79
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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.