Finding the Fourth Proportional to 97,811.37, 134,982.90 and 55,368.99
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Solution
The fourth proportional to 97,811.37, 134,982.90 and 55,368.99 is: 76,411.02
Step by Step Solution
- Step 1: Write the proportion equation
97,811.37 : 134,982.90 = 55,368.99 : x - Step 2: Convert to fraction form
97,811.37/134,982.90 = 55,368.99/x - Step 3: Cross multiply
97,811.37x = 134,982.90 × 55,368.99 - Step 4: Simplify right side
97,811.37x = 7,473,866,840.27 - Step 5: Solve for x
x = 7,473,866,840.27/97,811.37 - Step 6: Final answer
x = 76,411.02
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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.