Finding the Fourth Proportional to 90,491.40, 135,737.10 and 62,497.80
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Solution
The fourth proportional to 90,491.40, 135,737.10 and 62,497.80 is: 93,746.70
Step by Step Solution
- Step 1: Write the proportion equation
90,491.40 : 135,737.10 = 62,497.80 : x - Step 2: Convert to fraction form
90,491.40/135,737.10 = 62,497.80/x - Step 3: Cross multiply
90,491.40x = 135,737.10 × 62,497.80 - Step 4: Simplify right side
90,491.40x = 8,483,270,128.38 - Step 5: Solve for x
x = 8,483,270,128.38/90,491.40 - Step 6: Final answer
x = 93,746.70
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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.