Finding the Fourth Proportional to 70,970.67, 106,453.68 and 28,838.29
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Solution
The fourth proportional to 70,970.67, 106,453.68 and 28,838.29 is: 43,256.49
Step by Step Solution
- Step 1: Write the proportion equation
70,970.67 : 106,453.68 = 28,838.29 : x - Step 2: Convert to fraction form
70,970.67/106,453.68 = 28,838.29/x - Step 3: Cross multiply
70,970.67x = 106,453.68 × 28,838.29 - Step 4: Simplify right side
70,970.67x = 3,069,942,095.41 - Step 5: Solve for x
x = 3,069,942,095.41/70,970.67 - Step 6: Final answer
x = 43,256.49
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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.