Finding the Fourth Proportional to 83,801.28, 115,532.58 and 56,897.09
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Solution
The fourth proportional to 83,801.28, 115,532.58 and 56,897.09 is: 78,441.14
Step by Step Solution
- Step 1: Write the proportion equation
83,801.28 : 115,532.58 = 56,897.09 : x - Step 2: Convert to fraction form
83,801.28/115,532.58 = 56,897.09/x - Step 3: Cross multiply
83,801.28x = 115,532.58 × 56,897.09 - Step 4: Simplify right side
83,801.28x = 6,573,467,602.19 - Step 5: Solve for x
x = 6,573,467,602.19/83,801.28 - Step 6: Final answer
x = 78,441.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.