Finding the Fourth Proportional to 85,708.95, 118,277.06 and 47,984.55
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Solution
The fourth proportional to 85,708.95, 118,277.06 and 47,984.55 is: 66,217.95
Step by Step Solution
- Step 1: Write the proportion equation
85,708.95 : 118,277.06 = 47,984.55 : x - Step 2: Convert to fraction form
85,708.95/118,277.06 = 47,984.55/x - Step 3: Cross multiply
85,708.95x = 118,277.06 × 47,984.55 - Step 4: Simplify right side
85,708.95x = 5,675,471,259.50 - Step 5: Solve for x
x = 5,675,471,259.50/85,708.95 - Step 6: Final answer
x = 66,217.95
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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.