Finding the Fourth Proportional to 97,478.88, 134,518.08 and 55,041.44
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Solution
The fourth proportional to 97,478.88, 134,518.08 and 55,041.44 is: 75,955.62
Step by Step Solution
- Step 1: Write the proportion equation
97,478.88 : 134,518.08 = 55,041.44 : x - Step 2: Convert to fraction form
97,478.88/134,518.08 = 55,041.44/x - Step 3: Cross multiply
97,478.88x = 134,518.08 × 55,041.44 - Step 4: Simplify right side
97,478.88x = 7,404,068,829.24 - Step 5: Solve for x
x = 7,404,068,829.24/97,478.88 - Step 6: Final answer
x = 75,955.62
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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.