Finding the Fourth Proportional to 85,573.84, 128,368.16 and 22,393.70
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Solution
The fourth proportional to 85,573.84, 128,368.16 and 22,393.70 is: 33,592.49
Step by Step Solution
- Step 1: Write the proportion equation
85,573.84 : 128,368.16 = 22,393.70 : x - Step 2: Convert to fraction form
85,573.84/128,368.16 = 22,393.70/x - Step 3: Cross multiply
85,573.84x = 128,368.16 × 22,393.70 - Step 4: Simplify right side
85,573.84x = 2,874,638,064.59 - Step 5: Solve for x
x = 2,874,638,064.59/85,573.84 - Step 6: Final answer
x = 33,592.49
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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.