Finding the Fourth Proportional to 93,938.07, 129,639.84 and 55,720.23
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Solution
The fourth proportional to 93,938.07, 129,639.84 and 55,720.23 is: 76,897.06
Step by Step Solution
- Step 1: Write the proportion equation
93,938.07 : 129,639.84 = 55,720.23 : x - Step 2: Convert to fraction form
93,938.07/129,639.84 = 55,720.23/x - Step 3: Cross multiply
93,938.07x = 129,639.84 × 55,720.23 - Step 4: Simplify right side
93,938.07x = 7,223,561,701.96 - Step 5: Solve for x
x = 7,223,561,701.96/93,938.07 - Step 6: Final answer
x = 76,897.06
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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.