Finding the Fourth Proportional to 97,947.18, 135,195.14 and 57,684.30
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Solution
The fourth proportional to 97,947.18, 135,195.14 and 57,684.30 is: 79,620.84
Step by Step Solution
- Step 1: Write the proportion equation
97,947.18 : 135,195.14 = 57,684.30 : x - Step 2: Convert to fraction form
97,947.18/135,195.14 = 57,684.30/x - Step 3: Cross multiply
97,947.18x = 135,195.14 × 57,684.30 - Step 4: Simplify right side
97,947.18x = 7,798,637,014.30 - Step 5: Solve for x
x = 7,798,637,014.30/97,947.18 - Step 6: Final answer
x = 79,620.84
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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.