Finding the Fourth Proportional to 97,648.92, 134,749.12 and 54,620.95
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Solution
The fourth proportional to 97,648.92, 134,749.12 and 54,620.95 is: 75,373.34
Step by Step Solution
- Step 1: Write the proportion equation
97,648.92 : 134,749.12 = 54,620.95 : x - Step 2: Convert to fraction form
97,648.92/134,749.12 = 54,620.95/x - Step 3: Cross multiply
97,648.92x = 134,749.12 × 54,620.95 - Step 4: Simplify right side
97,648.92x = 7,360,124,946.06 - Step 5: Solve for x
x = 7,360,124,946.06/97,648.92 - Step 6: Final answer
x = 75,373.34
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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.