Finding the Fourth Proportional to 97,395.93, 134,408.07 and 57,138.66
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Solution
The fourth proportional to 97,395.93, 134,408.07 and 57,138.66 is: 78,852.34
Step by Step Solution
- Step 1: Write the proportion equation
97,395.93 : 134,408.07 = 57,138.66 : x - Step 2: Convert to fraction form
97,395.93/134,408.07 = 57,138.66/x - Step 3: Cross multiply
97,395.93x = 134,408.07 × 57,138.66 - Step 4: Simplify right side
97,395.93x = 7,679,897,012.99 - Step 5: Solve for x
x = 7,679,897,012.99/97,395.93 - Step 6: Final answer
x = 78,852.34
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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.