Finding the Fourth Proportional to 97,747.60, 134,888.01 and 55,307.05
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Solution
The fourth proportional to 97,747.60, 134,888.01 and 55,307.05 is: 76,321.65
Step by Step Solution
- Step 1: Write the proportion equation
97,747.60 : 134,888.01 = 55,307.05 : x - Step 2: Convert to fraction form
97,747.60/134,888.01 = 55,307.05/x - Step 3: Cross multiply
97,747.60x = 134,888.01 × 55,307.05 - Step 4: Simplify right side
97,747.60x = 7,460,257,913.47 - Step 5: Solve for x
x = 7,460,257,913.47/97,747.60 - Step 6: Final answer
x = 76,321.65
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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.