Finding the Fourth Proportional to 85,947.79, 118,595.30 and 47,707.62
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Solution
The fourth proportional to 85,947.79, 118,595.30 and 47,707.62 is: 65,829.49
Step by Step Solution
- Step 1: Write the proportion equation
85,947.79 : 118,595.30 = 47,707.62 : x - Step 2: Convert to fraction form
85,947.79/118,595.30 = 47,707.62/x - Step 3: Cross multiply
85,947.79x = 118,595.30 × 47,707.62 - Step 4: Simplify right side
85,947.79x = 5,657,899,446.55 - Step 5: Solve for x
x = 5,657,899,446.55/85,947.79 - Step 6: Final answer
x = 65,829.49
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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.